Definition of "let"
let1
/lɛt/
verb
third-person singular simple present lets, present participle letting, simple past let or (obsolete) leet, past participle let or (obsolete) letten
(transitive, obsolete except with know) To cause (+ bare infinitive).
let2
/lɛt/
verb
third-person singular simple present lets, present participle letting, simple past letted, past participle let