Words the Bible translates as watchtower

English uses one word here. The Bible uses 2 words, and they do not mean the same thing. Each is listed with what it actually means, most frequent first.

migdalמִגְדָּלtower: a tall, strong structure built up above its surroundings for defense, lookout, or sheer height
baḥanבַּחַןwatchtowernot studied yet

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Every English meaning beginning with W is on its letter page, and the whole index starts at Browse.