sentry box 
noun
A structure providing shelter for a standing sentry.Peering through the window of the prominent sentry box, black and white screens can be observed, charting the course of individuals as they traverse the grounds, stark white boxes encapsulating their persons....
- While a teenage North Korean was able to seek refuge within the building, the other was taken to a sentry box, at which point South Korean diplomats began to intervene, he said.
- In 1864 the company demolished the Citadel, along with the last two remaining Blockhouses, save for a stone sentry box and entrance arch.
- cellucotton
- cellular
- cellular automaton
- cellular blind
- cellular concrete
- cellular immune response
- cellular immunity
- cellularisation
- cellularise
- cellularised
- cellularity
- cellularization
- cellularize
- cellularized
- cellular logic
- cellular membrane
- cellular membranous
- cellular phone
- cellular slime mold
- cellular slime mould
- cellular theory
- cellular tissue
- cellulary
- cellulase
- cellulate