sentry box
noun[C]
uk/ˈsen.tri ˌbɒks/us/ˈsen.tri ˌbɑːks/asmallshelterin which asentrystandswhileguardingaplace
岗亭;哨所![picture of sentry box picture of sentry box](https://dictionary.cambridge.org//images/thumb/sentry_noun_002_32959.jpg?version=5.0.287)
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Places involved in military activity
- air bridge
- air corridor
- bases
- Bastille
- battlefield
- battleground
- camp
- emplacement
- enceinte
- fort
- front
- front-line
- garrison
- Martello tower
- multi-front
- observation post
- obstacle course
- parade ground
- PX
- theatre