Definition of "call off"

call off

verb
third-person singular simple present calls off, present participle calling off, simple past and past participle called off
1. (transitive) To recall; to cancel or call a halt to.
  Quotations
  You say either and I say either, / You say neither and I say neither / Either, either Neither, neither / Let's call the whole thing off
  1937, “Let's Call the Whole Thing Off”, Ira Gershwin (lyrics), George Gershwin (music)
  National rail strikes by ASLEF members on September 15 and by RMT members on September 15 and 19 were immediately called off.
  2022 September 21, “Network News: Unions postpone action during period of national mourning”, in RAIL, number 966, page 15
2. (intransitive) To telephone in one's notice of a day's absence from work.