(The second in a series.)
Like many similar words, loose and lose are easy to confuse because they look and sound similar. Also, because English is confusing, loose can be an adjective or a verb. So here’s a little quip to help you out:
You can loose a goose that’s caught in a trap,
But you lose a lover, a game, a hat.
Especially if the hat (or the lover?) was loose.