Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

(CK) prefixes 1-16

PrefixMeaning of PrefixSample WordDefinition of Word
pre- before, in advance pretest a test given before the real test
post- after postpone to do something after it was planned
mono- one monophobia fear of being the only one; fear of being alone
poly- many polygon a figure with many lines that connect
un- not,none uncertain not sure
dis- not,none discontinue to end something; to not use anymore
inter- between, among interfere to get in between two people
intra- within, inside intravenous within the veins
uni- one unicycle a one-wheeled vehicle
bi- two bilingual able to speak two languages
tri- three triathlon a race with three activities - swimming, bicycling, and running
quad- four quadruple to create four times as much of something
co-, com- together, with coexist combine to live together to put two things together
contra-, counter- against, opposite contradict counterclockwise to say the opposite opposite the hands of the clock
sub- below, under submarine a watercraft that stays under water
super-, sur- over, above, beyond superior surplus above average; excellent amount over and above; extra
Created by: lindajune



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards