Prefixes and Suffixes — Free Vocabulary Review Games.

'Pre-' indicates beforehand: preview, predict, preschool, prehistoric.

'-less' means without: hopeless, careless, endless, fearless.

'Re-' means again or back: redo, return, rebuild, review.

'-ful' means full of: beautiful, hopeful, careful, wonderful.

'Mis-' indicates error: mistake, misunderstand, misspell, mislead.

'Anti-' means against: antibody, antisocial, antidote, antipathy.

'-able/-ible' means capable of: readable, flexible, comfortable, visible.

'Inter-' means between: international, interact, interrupt, interview.

'-ment' forms nouns from verbs: achievement, government, movement, development.

'Trans-' means across: transport, transfer, translate, transform.

'Circum-' means around: circumference, circumstance, circumnavigate, circumscribe.

'-ous/-ious' forms adjectives: dangerous, curious, famous, gracious.

'Sub-' means under: submarine, subway, subtitle, subconscious, subordinate.

'-ize' creates verbs: memorize, organize, prioritize, visualize.

'Ex-' means out of or former: exit, export, exclude, ex-president, extract.

The prefix 'un-' is a negative prefix that reverses the meaning of the root word, so 'unhappy' means not happy. The distractor 'again' describes the prefix 're-,' which indicates repetition rather than negation. Recognizing negative prefixes like 'un-' helps students quickly decode unfamiliar words on vocabulary exams.

The prefix 'dis-' functions as a negative or reversative prefix, turning 'agree' into 'disagree' to mean the opposite action. The distractor 'with' describes prefixes like 'co-' or 'syn-,' which indicate togetherness rather than negation. Students should note that several prefixes such as 'un-,' 'dis-,' and 'non-' all create negation but attach to different root words.

The prefix 'non-' is a straightforward negation prefix, so 'nonfiction' means writing that is not fictional. The distractor 'across' describes 'trans-,' a prefix of movement rather than negation. Because several prefixes overlap in meaning, students should memorize which root words commonly pair with 'non-' versus 'un-' or 'dis-.'

The prefix 'over-' indicates excess or a position above, so 'overeat' means to eat too much. The distractor 'too little' is the opposite meaning, associated with the prefix 'under-.' Recognizing antonym prefix pairs like 'over-' and 'under-' helps students avoid confusing opposite word meanings on exams.

The prefix 'under-' signals insufficiency or a position beneath something, so 'underpaid' means paid too little. The distractor 'too much' describes 'over-,' the antonym prefix, not 'under-.' Learning prefix pairs together, such as 'over-' and 'under-,' strengthens quick recall during timed vocabulary tests.

The prefix 'bi-' is a numerical prefix meaning two, clearly shown in 'bicycle,' a vehicle with two wheels. The distractor 'three' corresponds to the prefix 'tri-,' a different numerical prefix. Number prefixes like 'bi-,' 'tri-,' and 'multi-' form a family that students should study together to avoid mixing them up.

The prefix 'tri-' denotes the number three, evident in 'triangle,' a shape with three angles and three sides. The distractor 'two' belongs to 'bi-,' a separate numerical prefix, so it does not fit 'tri-.' Students should memorize the sequence of Latin and Greek number prefixes since they appear frequently in geometry and science vocabulary.

The prefix 'mono-' derives from Greek and means one or single, as demonstrated by 'monologue,' a speech given by a single speaker. The distractor 'many' is the meaning of 'multi-' or 'poly-,' not 'mono-.' Because 'mono-' contrasts directly with 'multi-' and 'poly-,' pairing these prefixes during study helps prevent confusion.

The prefix 'multi-' signals a large or multiple quantity, seen in 'multicolor,' meaning having many colors. The distractor 'half' describes the prefix 'semi-,' which indicates a partial amount rather than abundance. Recognizing quantity prefixes such as 'multi-,' 'semi-,' and 'mono-' allows students to estimate word meaning even when the root is unfamiliar.

The suffix '-er/-or' transforms a verb into an agent noun describing the person or thing performing the action, as in 'teach' becoming 'teacher.' The distractor 'full of' describes the suffix '-ful,' not '-er/-or.' Agent suffixes like '-er,' '-or,' and '-ist' are common word-building tools that turn verbs into nouns naming a doer.

The suffix '-ness' attaches to adjectives to form abstract nouns describing a state or condition, turning 'happy' into 'happiness,' the state of being happy. The distractor 'one who does' describes agent suffixes like '-er,' not '-ness.' Abstract noun suffixes such as '-ness,' '-ity,' and '-hood' are essential for converting descriptive words into concepts.

The suffix '-ist' identifies a person associated with a practice, profession, or belief system, as shown in 'artist,' someone who practices art. The distractor 'the state of' describes suffixes like '-ness' or '-ism,' which name abstract conditions rather than people. Person-forming suffixes such as '-ist,' '-er,' and '-or' help students quickly identify nouns that refer to people.

The prefix 'semi-' indicates a partial or half quantity, clearly shown in 'semicircle,' which is exactly half of a circle. The distractor 'two' corresponds to the numerical prefix 'bi-,' not 'semi-.' Partial-quantity prefixes like 'semi-' often appear in geometry and science terms, so students should link them to their numeric meaning.

The prefix 'co-' indicates joint action or association, so 'cooperate' means to work together with others. The distractor 'against' is the meaning of 'anti-' or 'contra-,' which signals opposition, not partnership. Recognizing 'co-' alongside its variants 'com-,' 'con-,' and 'syn-' helps students spot words describing collaboration.

The prefix 'de-' often reverses or removes the action of the root word, so 'deactivate' means to turn off or undo activation. The distractor 'repetition' describes 're-,' which repeats an action rather than reversing it. Students should watch for 'de-' in words describing undoing, removing, or decreasing something.

The prefix 'en-' (and its variant 'em-' before b or p) transforms a noun or adjective into a verb meaning to cause or bring about that state, so 'enable' means to make able. The distractor 'negate the root word' describes prefixes like 'dis-' or 'un-,' which reverse meaning rather than cause a new state. Causative prefixes such as 'en-/em-' are key tools in word building because they convert descriptive words into action verbs.

The prefix 'post-' marks a time following a specific event, so 'postwar' refers to the period after a war ends. The distractor 'before a specified event' is the meaning of 'pre-,' its opposite prefix. Time-related prefixes like 'pre-' and 'post-' frequently appear together as antonym pairs in vocabulary tests.

The prefix 'pro-' in this context expresses support for or favor toward something, so 'pro-democracy' describes support for democratic government. The distractor 'against' describes 'anti-' or 'contra-,' prefixes with the opposite meaning of 'pro-.' Students should note that 'pro-' can also mean 'forward' in words like 'progress,' so context determines which sense applies.

The prefix 'super-' conveys a sense of exceeding a normal standard, so 'superhuman' describes abilities greater than typical human capability. The distractor 'below average ability' contradicts the prefix's meaning and instead matches prefixes like 'sub-' or 'hypo-.' Understanding 'super-' as 'above and beyond' helps decode words like 'superior' and 'supersonic.'

The suffix '-tion' (and its variant '-sion') converts verbs into nouns naming the act, process, or result of the action, so 'creation' refers to the act or product of creating. The distractor 'one who creates' describes an agent noun formed with '-or,' such as 'creator,' not '-tion.' Recognizing noun-forming suffixes like '-tion' and '-sion' helps students identify part of speech quickly during exams.

The suffix '-ity' attaches to adjectives to form abstract nouns naming a quality or condition, so 'curious' becomes 'curiosity,' the state of being curious. The distractor 'full of curiosity' resembles the meaning of '-ful,' a different suffix that modifies nouns into adjectives. Abstract-quality suffixes such as '-ity,' '-ty,' and '-ness' frequently overlap in meaning, so students should focus on which part of speech results.

The suffix '-ive' converts a verb or noun into an adjective describing a tendency or characteristic, so 'creative' describes someone who tends to create. The distractor 'without a certain quality' describes negative suffixes like '-less,' not '-ive.' Adjective-forming suffixes such as '-ive,' '-al,' and '-ic' help students recognize descriptive words in a sentence.

The suffix '-al' turns a noun into an adjective that describes a relationship or connection to that noun, so 'national' means relating to a nation. The distractor 'the act of' describes noun-forming suffixes like '-tion,' not the adjective suffix '-al.' Relational adjective suffixes such as '-al,' '-ic,' and '-ary' are useful for identifying descriptive terms tied to a specific noun.

Both '-ic' and '-al' are adjective-forming suffixes that mean 'relating to' or 'pertaining to,' so 'historic' and words like 'national' share the same grammatical function. The distractor '-ness' instead forms abstract nouns describing a state, not adjectives, making it grammatically different. Grouping suffixes by the part of speech they create, such as adjective-forming '-ic' and '-al,' speeds up word analysis on exams.

The suffix '-ify' (and its variant '-fy') creates causative verbs meaning to make or cause something to become the root's quality, so 'simplify' means to make simple. The distractor 'the state of being simple' describes a noun suffix such as '-ity,' not the verb-forming '-ify.' Causative verb suffixes like '-ify,' '-ize,' and '-en' are important for word building because they turn adjectives into action words.

The suffix '-ism' forms nouns that describe a doctrine, belief system, or characteristic practice, so 'capitalism' refers to an economic system based on capital ownership. The distractor 'a person who practices something' describes the related suffix '-ist,' such as 'capitalist,' not '-ism' itself. Students should note how '-ism' and '-ist' often appear as a pair, naming a belief and its follower respectively.

The suffix '-logy' derives from Greek and forms nouns naming a field of study, so 'biology' means the study of living organisms. The distractor 'a person who studies' instead describes '-logist,' a related but distinct suffix that names the practitioner. Recognizing '-logy' helps students identify academic subject names across science and social science vocabulary.

The suffix '-hood' forms abstract nouns describing a state, condition, or period of life, so 'childhood' refers to the time period of being a child. The distractor 'a place associated with children' does not match the core meaning of '-hood' as a suffix of state or condition. Suffixes like '-hood,' '-ship,' and '-dom' all describe abstract states or conditions and are often related in function.

The suffix '-ship' forms nouns describing a state, position, or skill associated with the root word, so 'leadership' refers to the position or skill of being a leader. The distractor 'one who follows a leader' would require an agent suffix like '-er,' not '-ship,' which names an abstract condition. Abstract-state suffixes such as '-ship,' '-hood,' and '-dom' help students form nouns describing roles and conditions.

The suffix '-dom' forms nouns describing a domain, territory, or condition of rank, so 'kingdom' refers to the territory ruled by a king. The distractor 'a person who rules' would need an agent suffix such as '-er' or '-or,' not '-dom.' Domain and state suffixes like '-dom,' '-hood,' and '-ship' all create abstract or territorial nouns from root words.

The suffix '-ward' is a directional suffix that indicates movement toward a specified place or position, so 'homeward' means moving toward home. The distractor 'the state of being home' would instead require a suffix like '-ness,' not the directional '-ward.' Directional suffixes such as '-ward' are less common but appear in words describing motion or orientation.

The suffix '-ish' added to a color or quality word softens the meaning to indicate a partial or approximate degree, so 'reddish' means somewhat red rather than fully red. The distractor 'completely red' contradicts the moderating function of '-ish,' which reduces intensity rather than confirming it. Recognizing '-ish' helps students understand nuanced degree words in descriptive vocabulary.

The prefix 'hyper-' means 'over' or 'excessive,' so 'hyperthyroidism' describes an overactive thyroid producing too much hormone. The distractor 'too low, same as hypothyroidism' confuses 'hyper-' with its antonym prefix 'hypo-,' which means 'under' or 'insufficient.' Because 'hyper-' and 'hypo-' are opposite prefixes that appear frequently in medical and scientific vocabulary, students must distinguish them carefully to avoid reversing a word's meaning.

The prefix 'homo-' means 'same,' so 'homogeneous' describes a substance that is uniform in composition throughout. The distractor 'different from one another' describes the opposite prefix 'hetero-,' as in 'heterogeneous,' which means made of dissimilar parts. Since 'homo-' and 'hetero-' form an antonym pair common in science vocabulary, students should memorize them together to prevent mixing up their meanings.

The prefix 'contra-' means 'against' or 'opposite,' and combined with the root 'dict' (speak), 'contradict' means to speak against or oppose a previous statement. The distractor 'to speak again about something' would require the prefix 're-,' which signals repetition, not opposition. Understanding how 'contra-' combines with roots like 'dict' demonstrates the word-building process of joining prefix and root to create precise meaning.

The prefix 'pseudo-' means 'false' or 'fake,' so a 'pseudonym' is a fictitious name used instead of a person's real one. The distractor 'their legal birth name' is the opposite of what 'pseudo-' signals, since the prefix specifically marks something as not genuine. Recognizing 'pseudo-' helps students identify words describing imitation or falseness, such as 'pseudoscience.'

The prefix 'retro-' means 'backward' or 'in the past,' so a 'retrospective' exhibit reviews an artist's earlier body of work. The distractor 'predict the artist's future work' would instead relate to a prefix like 'pro-' or 'fore-,' which point forward in time. Time-direction prefixes such as 'retro-,' 'pre-,' and 'post-' require students to track whether the word points to the past, present, or future.

The prefix 'syn-' (and its variant 'sym-') means 'together' or 'at the same time,' so 'synchronize' means to make events happen together in time. The distractor 'at different times' contradicts the core meaning of 'syn-,' which emphasizes simultaneity and coordination. Because 'syn-' appears in words like 'symphony' and 'symmetry,' students should link it to the concept of unity or togetherness.

The prefix 'macro-' means 'large' or 'large-scale,' so 'macroeconomic' analysis studies the economy as a whole rather than individual transactions. The distractor 'small-scale, focused on individual consumers' describes 'microeconomic' analysis, using the opposite prefix 'micro-.' Since 'macro-' and 'micro-' form a common antonym pair in academic vocabulary, students should associate each with its correct scale of analysis.

Combining the negative prefix 'ir-,' the root meaning 'to turn back,' and the suffix '-ible' meaning 'able to be,' the word logically means 'not able to be turned back,' matching the correct answer. The distractor 'able to be turned back easily' ignores the negating function of 'ir-,' which reverses the suffix's positive sense of capability. Breaking a complex word into prefix, root, and suffix, as shown here, is a reliable strategy for decoding unfamiliar multi-part vocabulary.

The suffix '-ify' commonly attaches to adjective or noun roots of Latin origin, as in 'simplify,' while '-ize' commonly attaches to noun roots often of Greek origin, as in 'modernize,' even though both mean 'to make' or 'to cause to become.' The distractor 'simplify and simplize, both correct' is wrong because 'simplize' is not a standard English word, showing that root origin determines which causative suffix is conventionally used. Recognizing that near-synonym suffixes like '-ify' and '-ize' are not always interchangeable helps students choose the historically correct word form.

The prefix 'mal-' means 'bad' or 'wrongly,' so 'malfunction' describes a machine operating badly or failing to work correctly. The distractor 'exceptionally well' is the opposite of the prefix's negative connotation, which always signals something is flawed or wrong. Recognizing 'mal-' in words like 'malnutrition' and 'malpractice' helps students quickly identify negative or harmful connotations.

The prefix 'extra-' means 'outside' or 'beyond,' so 'extraterrestrial' refers to something originating outside or beyond Earth. The distractor 'from deep within the Earth' contradicts the prefix's meaning of being external rather than internal. Students should note 'extra-' appears in words like 'extraordinary,' meaning beyond the ordinary, reinforcing its 'beyond' sense.

The negative prefix 'dis-' combined with the root 'proportion' and the adjective-forming suffix '-ate' produces a word meaning 'not in balanced relative size,' which matches something being too large or too small compared to expectations. The distractor 'perfectly balanced in size' is the opposite meaning and ignores the negating effect of 'dis-.' Analyzing each morpheme separately, as done here, is an effective strategy for determining the meaning of long, unfamiliar words built from multiple word parts.

Stacking the prefixes 're-' and 'con-' onto the root 'struct' and adding the noun suffix '-tion' creates a word describing the act of building something together again, consistent with each morpheme's individual meaning. The distractor 'the state of being unbuilt' would require a negative prefix like 'de-' or 'un-,' which is not present in 'reconstruction.' This example shows that complex words can stack multiple prefixes before a single root, and students should identify each morpheme in sequence to build the full meaning.