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Webster 1913 Edition
Dogwatch
Dog′watchˊ
,Noun.
(Naut.)
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.
Webster 1828 Edition
Dogwatch
DOGWATCH
,Noun.