We found one dictionary that defines the word let someone/something loose:

General (1 matching dictionary)

1. let someone/something loose: Oxford Learner's Dictionaries

▸ Words similar to let someone/something loose ▸ Usage examples for let someone/something loose ▸ Idioms related to let someone/something loose ▸ Wikipedia articles (New!) ▸ Words that often appear near let someone/something loose ▸ Rhymes of let someone/something loose ▸ Invented words related to let someone/something loose