substitutesentry
nounUK /ˈsʌbstɪtjuːtˌsɛntri/
US /ˈsʌbstɪtuːtˌsɛntri/
A substitute sentry is a guard who takes the place of another guard.
The captain sent a substitute sentry to stand at the gate while the regular guard rested.
RELATED WORDS
OTHER MEANINGS
2. A person temporarily filling a sentry post during a shift change.
During the shift change, a substitute sentry watched the perimeter for ten minutes.
3. A backup guard assigned to cover absences in a security detail.
The security chief kept a substitute sentry on call for emergencies.
4. In gaming, a player-controlled unit that replaces a fallen sentry character.
He deployed a substitute sentry after his main guard was defeated.