guardwatch

noun
UK /ˈɡɑːd.wɒtʃ/
US /ˈɡɑːrd.wɑːtʃ/

A guardwatch is a careful watch kept to keep someone or something safe.

The sailor stood guardwatch on the deck all night.


OTHER MEANINGS

2. A small clock or timer used by a guard to track shifts.

He checked his guardwatch to see when his shift ended.

3. A group of people who take turns keeping watch.

The guardwatch rotated every two hours.

4. The act of watching over a place to prevent danger.

They kept a guardwatch over the campsite until sunrise.