acknowledgment
ac.knowl.edg.ment also ac.knowl.edge.ment \ik-'na:l-ij-m*nt, ak-\ n 1a: the act of acknowledging 1b: recognition or favorable notice of an act or achievement 2: a thing done or given in recognition of something received 3: a declaration or avowal of one's act or of a fact to give it legal validity