replacementguard
nounUK /rɪˈpleɪsməntɡɑːd/
US /rɪˈpleɪsməntɡɑːrd/
A replacement guard is a person who takes the place of another guard when they are away.
The replacement guard stood at the gate while the regular guard took a break.
RELATED WORDS
OTHER MEANINGS
2. A protective cover used in place of an original one.
He fitted a replacement guard over the sharp blade.
3. A backup player who guards a position in sports.
The replacement guard scored the winning point.
4. A device that takes over a safety function when the main one fails.
The machine's replacement guard activated automatically.