Prefixes

Front

What is a prefix?

Back

A prefix is a group of letters added to the beginning of a word to change its meaning.

Front

What does the prefix 'un-' mean?

Back

The prefix 'un-' means 'not'. For example, 'happy' becomes 'unhappy', which means 'not happy'.

Front

What does the prefix 're-' mean?

Back

The prefix 're-' means 'again'. For example, 'do' becomes 'redo', which means 'to do again'.

Front

What does the prefix 'mis-' mean?

Back

The prefix 'mis-' means 'wrong' or 'badly'. For example, 'understand' becomes 'misunderstand', which means 'to understand wrongly'.

Front

What does the prefix 'fore-' mean?

Back

The prefix 'fore-' means 'before'. For example, 'cast' becomes 'forecast', which means 'to predict before'.

Front

What does the prefix 'ir-' mean?

Back

The prefix 'ir-' means 'not'. For example, 'regular' becomes 'irregular', which means 'not regular'.

Front

What is the root word in 'undo'?

Back

The root word in 'undo' is 'do'.

Front

What is the root word in 'misnumber'?

Back

The root word in 'misnumber' is 'number'.

Front

What does the prefix 'dis-' mean?

Back

The prefix 'dis-' means 'not' or 'opposite of'. For example, 'agree' becomes 'disagree', which means 'not agree'.

Front

What does the prefix 'sub-' mean?

Back

The prefix 'sub-' means 'under' or 'below'. For example, 'marine' becomes 'submarine', which means 'under the sea'.