acknowledgment

noun

1
a statement acknowledging something or someone
she must have seen him but she gave no sign of acknowledgment
the preface contained an acknowledgment of those who had helped her
2
a short note recognizing a source of information or of a quoted passage
the student's essay failed to list several important citations
the acknowledgments are usually printed at the front of a book
3
the state or quality of being recognized or acknowledged
the partners were delighted with the recognition of their work
she seems to avoid much in the way of recognition or acknowledgement of feminist work prior to her own

Also useful for “acknowledgment”:Scrabble— High-value letters — see what it scores