Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Your email address is only used to allow you to reset your password. See 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


Reading Comprehension Prefixes

a-, an- (atheist, anaemic) not, without (atheist, anaemic)
a- (aside, aglow) to, towards (aside, aback); in the process of, in a particular state (a-hunting, aglow)
a- (anew, abashed) of (anew); completely (abashed)
ab-, abs- away, from (abdicate, abstract)
ad-, a-, ac-, af-, ag- al-, an-, ap-, at- as-, at- movement to, change into, addition or increase (advance, adulterate, adjunct, ascend, affiliate, affirm, aggravate, alleviate, annotate, apprehend, arrive, assemble, attend)
ante- before, preceding (antecedent, ante-room)
anti-, ant- opposing, against, the opposite (anti-aircraft, antibiotic, anticlimax, Antarctic)
be- all over, all around (bespatter, beset); completely (bewitch, bemuse); having, covered with (bejewelled) affect with/added to nouns (befog) cause to be/added to adjectives (becalm)
com-, co-, col-, con-, cor- with, jointly, completely (combat, codriver, collude, confide, corrode)
contra- against, opposite (contraceptive)
counter- opposition, opposite direction (counter-attack, counteract)
de- down, away (descend, despair, depend, deduct); completely (denude, denigrate); removal, reversal (de-ice, decamp)
dia-, di- through, across (diagonal)
dis-, di- negation, removal, expulsion (disadvantage, dismount, disbud, disbar)
en-, em- put into or on (engulf, enmesh); bring into the condition of (enlighten, embitter); intensification (entangle, enrage)
ex-, e-, ef- out (exit, exclude, expand); upward (exalt, extol); completely (excruciate, exasperate); previous (ex-wife)
extra- outside, beyond (extracurricular)
hemi- half (hemisphere)
hyper- beyond, more than, more than normal (hypersonic, hyperactive)
hypo- under (hypodermic, hypothermia)
in-, il-, im- not, without (infertile, inappropriate, impossible)
il-, im-, ir- in, into, towards, inside (influence, influx, imbibe)
infra- below (infrared, infrastructure)
inter- between, among (interact, interchange)
intra- inside, within (intramural, intravenous)
non- absence, negation (non-smoker, non-alcoholic)
ob-, oc-, of-, op- blocking, against, concealing (obstruct, occult, offend, oppose)
out- surpassing, exceeding (outperform); external, away from (outbuilding, outboard)
over- excessively, completely (overconfident, overburdened, overjoyed); upper, outer, over, above (overcoat, overcast)
peri- round, about (perimeter)
post- after in time or order (postpone)
pre- before in time, place, order or importance (pre-adolescent, prelude, precondition)
pro- favouring, in support of (pro-African); acting for (proconsul); motion forwards or away (propulsion); before in time, place or order (prologue)
re- again (repaint, reappraise, reawake)
semi- half, partly (semicircle, semi-conscious)
sub-, suc-, suf-, sug-, sup-, sur-, sus- at a lower position (submarine, subsoil); lower in rank (sub-lieutenant); nearly, approximately (sub-tropical)
syn-, sym- in union, acting together (synchronize, symmetry)
trans- across, beyond (transnational, transatlantic); into a different state (translate)
ultra- beyond (ultraviolet, ultrasonic); extreme (ultramicroscopic)
un- not (unacceptable, unreal, unhappy, unmanned); reversal or cancellation of action or state (unplug, unmask)
under- beneath, below (underarm, undercarriage); lower in rank (undersecretary); not enough (underdeveloped)
Created by: brian30148
Popular Miscellaneous sets




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