a tower on which a sentry keeps watch
WordReference Random House Unabridged Dictionary of American English © 2025
watch•tow•er
(woch′tou′ər),USA pronunciation n.
- a tower on which a sentinel keeps watch.
- watch + tower 1535–45
Collins Concise English Dictionary © HarperCollins Publishers::
'watchtower' also found in these entries (note: many are not synonyms or translations):