Dogwatch
Pronunciation : Dog"watch`
Part of Speech : n.
Definition : Defn: A half watch; a watch of two hours, of which there are two, the first dogwatch from 4 to 6 o'clock, p.m., and the second dogwatch from 6 to 8 o'clock, P. M. Totten.
(Naut.)
Source : Webster's Unabridged Dictionary, 1913