A suffix is a letter or group of letters added to the end of a word. Knowing what a suffix means can help us to understand new words.

For example, the suffix -er can mean a person who does something.

If you teach someone you are a teacher.

If the word ends in -e then we just add -r.

manage / manager

If the word ends in -y we have to change it to 'i' before we add the suffix.

qualify / qualifier

Shall we have a go at some questions on this?