Looks like no one added any tags here yet for you.
Ab-, A-, Abs-
from, away, off
Ad-
to, toward, near
Ante-
before
Post-
after
Bi-
two
Semi-
half, partly
Abdicate
(v) Formally remove oneself form; give up; relinquish; surrender
Abduct
(v) Carry off by force; kidnap
Abhor
(v) Shrink from; detest; loathe; hate (antonym: admire)
Abnormal
(adj) Deviating from the normal; unusual; irregular
Abrasion
(n) Scraping or wearing away of the skin by friction
Abrupt
(adj) Broken off; sudden; unexpected
Abscond
(v) Steal off and hid; depart secretly; flee
Absolve
(v) 1. Set free from some duty or responsibility 2. Declare free from guilt or blame
Absorbing
(adj) Fully taking away one's attention; extremely interesting; engrossing
Abstain
(v) Withhold oneself from doing something; refrain
Averse
(adj) Literally, "turned from"; opposed; disinclined; unwilling
Avert
(v) Turn away; ward off; prevent
Avocation
(n) Occupation away from one's customary occupation; hobby (antonym: vocation)
Adapt
(v) 1. (literally, "fit to") adjust; suit; fit 2. Make suitable for a different use; modify
Addicted
(adj) Given over (to a habit); habituated
Adequate
(adj) Equal to, or sufficient for, a specific need; enough; sufficient (antonym: inadequate)
Adherent
(n) One who sticks to a leader, party, etc.; follower; faithful supporter
Adjacent
(adj) Lying near; neighboring; bordering (antonym: distant)
Adjoin
(v) Be next to; be in contact with
Adjourn
(v) Put off to another day; suspend a meeting to resume at a future time; defer
Advent
(n) A "coming to"; arrival; approach
Adversary
(n) Person "turned toward" or facing another as an opponent; foe; contestant (antonym: ally)
Adverse
(adj) In opposition to one's interests; hostile; unfavorable (antonym: favorable)
Antecedents
(n, pl.) Ancestors; forefathers (antonym: descendant)
Antedate
(v) 1. Assign a date before the true date 2. Come before in date, precede
Postdate
(v) Assign a date after the true date
Ante Meridiem
(adj) Before noon
Post Meridiem
(adj) after noon
Anteroom
(n) Room placed before and forming an entrance to another; antechamber; waiting room
Postgraduate
(adj) Having to do with study after graduation from high school or college
Postmortem
(n) Through examination of a body after death; autopsy
Postscript
(n) Note added to a letter after it has been written
Bicameral
(adj) Consisting of two chambers or legislative houses
Bicentennial
(n) Two hundredth anniversary
Biennial
(adj) Occurring every two years
Semiannual
(adj) Occurring every half year, or twice a year; semiyearly
Bimonthly
(adj) Occurring every two months
Semimonthly
(adj) Occurring every half month, or twice a month
Bilateral
(adj) Having two sides
Bilingual
(adj) 1. Speaking two languages equally well 2. Written in two languages
Bipartisan
(adj) Representing two political parties
Bisect
(v) Divide into two equal parts
Semicircle
(n) Half of a circle
Semiconscious
(adj) Half conscious; not fully conscious
Semidetached
(adj) Partly detached; sharing a wall with an adjoining building on one side, but detached on the other
Semiskilled
(adj) Partly skilled