swivel swivel /ˈswɪvəl/

noun

1. A coupling (as in a chain) that has one end that turns on a headed pin  ( swivel )
   a coupling (as in a chain) that has one end that turns on a headed pin
    The swivel on the chair allowed it to rotate 360 degrees.
   The swivel on the chair allowed it to rotate 360 degrees.
   
   

verb

1. () Turn on a pivot  ( pivot , swivel )
   turn on a pivot