--- title: "Verb Prefixes and Meaning" description: "Use verb prefixes (dis-, de-, mis-, over-, re-) to change verb meaning. Understand how each prefix changes the action expressed by the root verb." canonical: https://lightmysky.com/learn/english/verb-prefixes-and-meaning-mt_qw6mhOl-Qy source: https://lightmysky.com/learn/english/verb-prefixes-and-meaning-mt_qw6mhOl-Qy.md retrieved: 2026-11-12 --- > **Agent view.** This is the Markdown twin of the page, for tools and assistants. > When to use this site, and the call that answers each job: https://lightmysky.com/agent-instructions.md > API description (OpenAPI 3.1): https://lightmysky.com/openapi.json · Authentication: https://lightmysky.com/auth.md > Pricing: https://lightmysky.com/pricing.md · Catalog: https://lightmysky.com/llms.txt · Full catalog: https://lightmysky.com/llms-full.txt > Every machine-readable file on this domain: https://lightmysky.com/.well-known/ai-catalog.json > Ask for Markdown with `Accept: text/markdown`, a `.md` address, or `?mode=agent`. # Verb Prefixes and Meaning Use verb prefixes (dis-, de-, mis-, over-, re-) to change verb meaning. Understand how each prefix changes the action expressed by the root verb. Subject: English · Area: Grammar & Punctuation · Ages 9 to 10 Page: https://lightmysky.com/learn/english/verb-prefixes-and-meaning-mt_qw6mhOl-Qy ## Ready when they can - Add verb prefixes to change meaning, using established words such as disagree, disappear, defrost, misunderstand, misbehave, overcook, overreact, redo and reconsider. - Select a prefix for a stated meaning: dis- for not or opposite, mis- for incorrectly, de- or un- for removal or reversal, re- for again, and over- for excess. - Use sentence context to distinguish a prefixed verb from a prefixed noun or adjective, and explain how the prefix changes the verb's meaning. ## Lesson: Verb prefixes: small parts, big meaning changes A prefix goes before a base word and changes its meaning. A prefix added to a verb changes the action described: redo means do again. Prefixes also occur in other word types. Unhappy is an adjective describing a feeling. In 'I wore my overcoat', overcoat is a noun naming clothing. Use the sentence to check how a word is used. *(drawing: Appear means come into sight. Disappear means go out of sight.)* Dis- can mean not or opposite: disagree means not agree; disappear means go out of sight. Mis- means incorrectly, as in misread. De- can mean remove or reverse: defrost means remove frost or thaw frozen food. Re- can mean again, as in redo. Over- can mean too much: overcook means cook too long. These are meaning clues. Use the sentence too. Use established words; do not attach any prefix to any verb. **Example.** Mia misread 'one spoon of sugar' as 'two spoons'. Leo baked the cake too long and overcooked it. They will redo the cake, which means make it again. Un- can reverse an action. Untie undoes tying, unpack means take out what was packed, and unlock undoes locking. Unlocking a door does not mean you have opened it. Some words only begin with familiar prefix letters. Uncle does not contain un- meaning reverse, and disaster does not contain dis- meaning not. A suffix goes after a base: helpful is help + -ful, and sadness is sad + -ness. Replay has re- before the verb play. Context also helps with meaning. 'I mistook Ali for Sam' means I thought Ali was Sam. Mis- signals that mistake; it does not mean I physically took a person. **Tip.** Look for a known base word. Check the word's job in the sentence, then use the prefix and context together. A dictionary can help when the meaning is unclear. **Recap.** Verb prefixes like dis-, de-, mis-, over-, re-, and un- change what the action itself means. *Original lesson, practice and learning-card text written for this dataset. Khan Academy word-study records informed factual checks and question design.* ## Practice 24 questions on this page, each with its working shown. ## Needs first - [Prefixes (age 7+)](https://lightmysky.com/learn/english/prefixes-age-7-mt_T6nrrf2K43) ## Optional connections - [Basic Nouns & Verbs](https://lightmysky.com/learn/english/basic-nouns-and-verbs-mt_yBJyCfhtem) ## Opens up - [Vocabulary Strategies](https://lightmysky.com/learn/english/vocabulary-strategies-mt_WZnwITSWr8)