D defs.my
Entry 1 sense Webster, 1913

Let-up

/(lĕt"ŭp`)/ · Let·-up · IPA /lˈɛtˌʌp/
01 n. Abatement; also, cessation; as, it blew a gale for three days without any let-up.
  1. 1.
    Abatement; also, cessation; as, it blew a gale for three days without any let-up.[Colloq.]