Wordnet 3.0
NOUN (1)
1.
a small shelter with an open front to protect a sentry from the weather;
The Collaborative International Dictionary of English v.0.48:
Sentry \Sen"try\, n.; pl. Sentires. [Probably from OF.
senteret a little patch; cf. F. sentier path, and OF. sente.
See Sentinel.]
1. (Mil.) A soldier placed on guard; a sentinel.
[1913 Webster]
2. Guard; watch, as by a sentinel.
[1913 Webster]
Here toils, and death, and death's half-brother,
sleep,
Forms terrible to view, their sentry keep. --Dryden.
[1913 Webster]
Sentry box, a small house or box to cover a sentinel at his
post, and shelter him from the weather.
[1913 Webster]
WordNet (r) 3.0 (2006):
sentry box
n 1: a small shelter with an open front to protect a sentry from
the weather
Moby Thesaurus II by Grady Ward, 1.0:
18 Moby Thesaurus words for "sentry box":
Nissen hut, Quonset hut, booth, crib, gatehouse, hut, hutch, kiosk,
lean-to, outbuilding, outhouse, pavilion, shack, shanty, shed,
stall, tollbooth, tollhouse