Prefix
Meaning
Sample Word
A prefix is a group of
letter added to the
beginning of a root word.
 The
root is the main part of
the word.
 It is sometimes called the base
word.
 There
goes a duckling! It’s
diving underwater. That’s
unbelievable! What a fearless
little duck!
 Unplug
 Rebuild
 Teacher
 Drinkable

Adding a prefix changes the meaning of the
base word.
Safe
Happy
Roll
Tie
Unsafe
Unhappy
Unroll
untie

Adding “un,” creates the opposite word.
Unhealthy
Uneven
Unreal
Unplug
Unwise
Prefix
Meaning
Sample Word
Un
Not
Untie, unlikely,
uneven
Adding “dis” also means “not
Disagree
Disorganized
Disposable
Discontinued
Disrespectful
Prefix
Meaning
Sample Word
Un
Not
Dis
Not
Untie, unlikely,
uneven
Disagree,
disorganized

The prefix “re” means “to do something again”
Redraw
Retell
Rethink
Resend
Prefix
Meaning
Sample Word
Un
Not
Dis
Not
Re
Again
Untie, unlikely,
uneven
Disagree,
disorganized
Redo
resend
Inter
Over
Prefix
Meaning
Sample Word
Un
Not
Untie, unlikely,
uneven
Dis
Not
Disagree,
disorganized
Re
Again
Retell
resend
Inter
Between or
among
Interconnected
Over
Too much
Overconfident
overestimate



Stop pouring the milk. My glass is
overflowing!
Stop feeding me cookies. I don’t want to
overeat!
I’m not pulling any more weeds. I’m
What does
overworked!
“over”
mean?
“Over” = Too
much
Prefix
Meaning
Sample Word
Under
Not enough
undercooked



This hamburger is still pink. It’s
undercooked.
Don’t underfeed the octopus. It might start
eating the fish!
I undercounted the number of desks. There
What does
are 26 instead of 24.
“under”
mean?
“Under” = Not
enough

Over and under can also mean “over” and “under”
Watch out! There’s a flock of pigeons overhead.
The squirrel buried his acorns underground.
Prefix
Meaning
Sample Word
Pro
In favor of, for
Pro-war
If you are in favor of homework, then you are
_____- homework.
If you are in favor of the Cleveland Indians,
then you are _____ - Tribe!
The character we are “in favor of” in a story is
protagonist
known as the ________________________
Prefix
Meaning
Sample Word
Pro
In favor of, for
Pro-war
Anti
Against
Anti-war
If you are against homework, then you are
_______ - homework.
The character who is against the protagonist is
antagonist
the ____________________________.
Prefix
Meaning
Sample Word
Over
Too much
Overcooked
Under
Not enough
undercooked
Pro
In favor of, for
Pro-war,
protagonist
Anti
Against
Anti-war,
antagonist
ProAntiUnder Inter- between
Dis- not
Un-not
Re- again
Over – too much
1.
2.
Complete character map
Finish reading Chapter 11. Begin on page
66!
A prefix comes before the root word!
We are taking a pretest in Social Studies.
There were ten previews before the movie
started.
You must prepay for gas at this station.
What does
“pre”
mean?
“pre”= before
Prefix
Meaning
Sample Word
Pre
Before
Prefix, pretest
What is the opposite of “pre?”
Be sure and stay after the game. There’s a
postgame party!
I’m sorry the holidays are over. I have the
postholiday blues.
“Post” = After







Re = Again
un=
Not/Opposit
Pre=
eBefore
Post=
Under= After
Over= Not
Dis=
enough
Too much
Not
Prefix
Meaning
Uni-
One
Bi-
Two
Tri-
Three
Quad-
Four
Mono-
One, single
Poly-
Many
Semi-
Half or partly
Multi-
many
Quadruplets are __________ brothers or sisters
born at the same time.
A millipede is an insect that is sometimes
called a ______________-legger.
A semicircle is a _________ circle.
A multicolored coat has _________ colors.
1.
Name a shape that has three sides or angles.
2. What kind of chocolate is only partly sweet?
3. What kind of cereal has many kinds of grain
in it?
4. What word describes how there is only one
“you?”
A suffix is a group of letter added to the end
of a word.
A verb is
an action
word!
Verb
Teach
Run
Eat
Noun
teacher
Runner
eater
“-er” means someone who
does!
Verb
Move
Govern
Amaze
Noun
Movement
Government
amazement
An adjective is
a word that
describes a
noun!
Verb
Like
Do
Drink
Adjective
Likeable
Doable
Drinkable
Verb
Adjective
Play
Use
Help
Playful
Useful
helpful
Verb
Adjective
Sugar
Home
Sleep
sugarless
Homeless
sleepless
“-less” means “without”
I’m hopeful about the game but hopeless about
my grades.
Kevin is careful with money but careless with
his clothes.