名詞 pivot:

1. the person in a rank around whom the others wheel and maneuver
   同義詞：pivot man
2. axis consisting of a short shaft that supports something that turns
   同義詞：pin
3. the act of turning on (or as if on) a pivot

動詞 pivot:

1. turn on a pivot
   同義詞：swivel

1. Because her job had been the pivot of her life, retirement was very difficult.
   因為她的工作一向是她生命的支柱，所以退休后日子很不好過。
2. The whole discussion pivots on this one point.
   整個討論內容均以此為中心。
3. That is the pivot of the whole argument.
   這是整個論據(jù)的關鍵。

piv.ot

n.（名詞）
A short rod or shaft on which a related part rotates or swings.
樞，軸：一根短桿或軸，相關的部分可在其上轉動或搖擺
A person or thing on which something depends or turns; the central or crucial factor.
中心人物，中心點：某人或物，其它東西依靠它或繞它轉動；中心，要點
The act of turning on or as if on a pivot.
轉動，旋轉運動：在樞軸上或似乎在樞軸上轉動的行為
v.（動詞）
piv.ot.ed,piv.ot.ing,piv.ots
v.tr.（及物動詞）
To mount on, attach by, or provide with a pivot or pivots.
給…裝樞軸：裝上或放置或提供一根或多根樞軸
To cause to rotate, revolve, or turn.
使轉動、旋轉或滾動
v.intr.（不及物動詞）
To turn on or as if on a pivot:
轉動，隨著移動：
例句：
.The plot . . . lacks direction, pivoting on Hamlet`s incertitude.(G. Wilson Knight)
.計謀…缺乏方向，隨著哈姆萊特的不確定性擺動.(G.威爾遜·奈特)

來源：
French
法語
from Old French
源自 古法語

【引伸】
piv.otable
adj.（形容詞）