Search Result for "clock on":
Wordnet 3.0

VERB (1)

1. register one's arrival at work;
[syn: clock in, punch in, clock on]



WordNet (r) 3.0 (2006):

clock on
    v 1: register one's arrival at work [syn: clock in, punch
         in, clock on] [ant: clock off, clock out, punch
         out]