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What is a prefix?

Prefixes are a group of letters that change the meaning of a word when they are added to the start.

Most prefixes mean a similar thing when they're added to different words.

The prefix un- usually means not. For example:

  • unhappy
  • unlocked
  • unfair

The prefixes dis- and mis- usually have negative meanings. For example:

  • disagree
  • disobey
  • misbehave

The prefix re- usually means again or back. For example:

  • redo
  • reappear
  • redecorate

The prefix sub- usually means under. For example:

  • subheading
  • submarine
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Watch: How to use prefixes

Fudge, Pudge and Grudge learn about what a prefix is.

Find out what prefixes are with Bitesize KS1 English.

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Activity 1

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Activity 2

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Activity 3

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Activity 4

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Karate Cats English game!
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