English Dictionary

A fixed pin or short axis, on the end of which a wheel or other body turns.
Source : opted (115184)  - auto

The end of a shaft or arbor which rests and turns in a support; as, the pivot of an arbor in a watch.
Source : opted (115185)  - auto

Hence, figuratively: A turning point or condition; that on which important results depend; as, the pivot of an enterprise.
Source : opted (115186)  - auto

The officer or soldier who simply turns in his place whike the company or line moves around him in wheeling; -- called also pivot man.
Source : opted (115187)  - auto

To place on a pivot.
Source : opted (115190)  - auto