These activity sheets will teach your students how to recognize and use prefixes correctly.

A prefix is a beginning root that modifies the meaning of a word. Prefixes in English usually come from both Latin and Greek, so different prefixes can have the same meaning. The following collection of worksheets will help your students learn what different prefixes mean in order to use them correctly. Activities include assigning prefixes from a given list to specific words, defining prefixes, changing words into their opposites with prefixes, and more. Answer keys are provided.

Note: Similar-sounding prefixes don’t always mean the same thing. "Ante-" is a Latin prefix which means "before," while "anti-" is a Greek prefix that means "against."

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Printable Prefix Worksheets

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Prefixes

A prefix is a word part that is added to the front of a base word to change its meaning. More than one prefix may mean the same thing.

Prefixes and Their Meanings

Circle the prefix in each word. Then write the meaning of the word on the line.

Choose the Right Prefix

You can change the meaning of a word by adding a prefix to it. Look at each base word below. Which prefix is often added to it? Choose the correct prefix and write the new word on the line beneath that prefix.

Prefixes and Opposites

Rewrite each sentence, adding a prefix to the underlined word to change its meaning to its opposite.

Mix and Match!

Add a prefix to each base word to create new words. You may use each prefix more than once. Some words may take more than one prefix.

The Prefix Dis

The prefix dis- means "not." Write a single word that contains the prefix dis- to complete each sentence.

The Word Factory

Use a prefix to create a word that has the indicated meaning. Write your word on the line.

The Prefix Un-

The prefix un- means "not." The underlined word in each sentence below is incorrect; its opposite should be in its place. Help The Not correct each sentence by writing the correct word on the line. Use the prefix un-.

Words Under Construction

Circle the correct prefix to go with each word. Write the new word on the line.

Fill in the Prefix

Complete the table by filling in a prefix that goes with the root word and writing a word that matches the meaning provided.

Word Adders

Add one of the prefixes below to each word to create a new word. Write the prefix before the word. Write the new word on the line.

Prefixes and Meaning

Circle the prefix in each word. Then match it to its correct meaning.

The Prefix Re-

A prefix is a word part that is added to the front of a base word to change its meaning. Adding the prefix re- changes the meaning of a word, so that it means to do (the base word) again.

Prefixes Worksheet

Circle the word that contains the correct prefix.

Prefixes

A prefix is a word part that is added to the front of a base word. Every prefix has a meaning, and when you add a prefix to a word, the meaning of the prefix changes the meaning of the word.