Word   Definition(* denotes word appeared on both Baron and Kaplan lists)
abate*
/ bet /
formal    to become less strong or decrease  减弱， 缓和
We waited for the storm to abate.
abdicate
/ aebdket /
to give up the position of being king or queen      禅让， 退位
King Alfonso XIII abdicated in favor of his eldest son.   
The king was forced to abdicate the throne.
aberrant   
/ aebrnt /

not usual or normal    异常
synonym abnormal, deviant  
aberrant behavior
abeyance   
/ bens /

in abeyance   
something such as a custom, rule, or system that is in abeyance is not being
used at the present time
fall into abeyance (=no longer be used)  暂时搁置
abject
/ aebdekt /
1. abject poverty/misery/failure etc  赤贫
the state of being extremely poor, unhappy, unsuccessful etc
2. an abject action or expression shows that you feel very ashamed  卑劣
an abject apology
abjure
/b’d/
formal    to state publicly that you will give up a particular belief or way of
behaving   
synonym renounce 放弃
ablution
/blu n/
if  you  perform  your  ablutions,  you  wash  yourself  ‐  sometimes  used
humorously
沐浴
abrogate   
/aebrget/
to officially end a legal agreement, practice etc      废止
Both governments voted to abrogate the treaty.
abscond*
/bsknd/
1    to escape from a place where you are being kept
abscond from 逃离某地
The boy absconded from a children's home.   
2    to secretly leave somewhere, taking with you something that does not
belong to you   
abscond with 逃离携带
He has to convince a judge that he wasn't going to abscond with the
money.
abstemious*
/bstimis/
careful not to have too much food, drink etc    节制， 节食
abstruse
/bstrus/
unnecessarily complicated and difficult to understand      复杂
Maths is a mix of abstruse theory and detailed calculations.
accretion
/kri n 　 /
a layer of a substance which slowly forms on something  积（尘）  

acerbic
/sbk/
criticizing someone or something in a clever but cruel way  尖刻
acerbic wit