Grammar Aquarium




A prefix is a group of letters placed at the start of a word.

It can alter the meaning or function of the word in some way.

Different prefixes affect words in different ways.

A prefix will always be at the beginning.

For example,

super + market = supermarket

The addition of the prefix ‘super’ makes the market bigger.

un + interested = uninterested

The addition of the prefix ‘un’ flips the words meaning to mean the opposite.


Remember, prefixes always go at the beginning of words.

Your Turn…

1. What is a prefix?
A group of letters at the start of a word
A group of letters at the end of a word
A type of fish

2. What does a prefix do?
Alters the speed of a word
Alters the meaning of a word
Alters the shoe size of a word

3. Where about in a word would we find a prefix?
The beginning
The middle
The end

4. Which prefix would normally make a word mean its opposite?

5. Which of the following words has a prefix?

Score =
Correct answers:


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The purpose of this site is to offer a fun insight into the grammatical terms required for the KS2 GPS tests taken in year 6, but the different pages should prove useful to anyone wishing to consolidate their grammatical knowledge.

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