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

• un- and in- usually mean ‘not’.

For example: unhappy, unlocked, unfair and intolerant, incapable, inconsiderate

• dis- and mis- usually have negative meanings.

For example: disagree, disobey, misbehave, mislead

• re- usually means ‘again’ or ‘back’.

For example: redo, reappear, redecorate

• For example: subheading, submarinesub- usually means ‘under’.

There are spelling rules to follow when you add prefixes to words.

Visit the BBC Bitesize page to see the useful videos and exciting activities for prefixes!