Prefixes and Suffixes

Roots & Affixes

More strategies to figure out word meaning!

triangle
tricycle
triceratops

What are some words with tri-?

biography
biology
bioluminescence
biomimicry
biotic
biodegradable

What are some words with bio?

Think about it...

​Bio means life!

​tri means 3!

Check out the song

​

Affixes can change the meaning or part of speech of words.
Prefix- added to the beginning of the word
Suffix- added to the end of the word
help= verb (root word) helper=noun
helpful= adjective unhelpful= adjective

Multiple Choice

A prefix is added to the ____________ of the word.

• beginning

• middle

• end

Multiple Choice

A suffix is added to the ____________ of the word.

• beginning

• middle

• end

Multiple Choice

Adding a prefix/suffix changes the meaning of a word.

• True

• False

Prefix Examples

• Out means "beyond or outside"

• re means "again or back"

• en mean to cause

• un- or dis mean "not".

Suffix Examples

• ful means "full of"

• ly means "characteristic of"

• ness means "state of"

• meant means "action or process of"

Categorize

Options (20)

careless

joyful

friendly

reorganize

predetermine

misspell

determine

joy

spell

helpful

darkness

friendly

dislike

nonfiction

underground

impossible

joy

kind

read

believable

Read each word and decide which words have prefixes, suffixes, and which ones are root words.

Suffix

Prefix

Root Word

Multiple Choice

What does dislike mean?

• like a lot

• not like

• like a little

Multiple Choice

What does uneven mean?

• a little even

• even all over

• not even

Multiple Choice

What does trustful mean?

• full of trust

• not to trust

• trust a little