Main Entry:

slack·en

Pronunciation:

\ˈsla-kən\

Function:

verb

Inflected Form(s):

slack·ened; slack·en·ing \ˈsla-k^ən-iŋ\

Date:

14th century

transitive verb 1 : to make less active : slow up <slacken speed at a crossing> 2 : to make slack (as by lessening tension or firmness) <slacken sail> intransitive verb 1 : to become slack or slow or negligent : slow down 2 : to become less active : slack

synonyms see delay