acceptance - the state of being acceptable and accepted; "torn jeans received no acceptance at the country club"

credits - a list of acknowledgements of those who contributed to the creation of a film (usually run at the end of the film)

receipt - an acknowledgment (usually tangible) that payment has been made

subject matter, content, message, substance - what a communication that is about something is about

farewell, word of farewell - an acknowledgment or expression of goodwill at parting

greeting, salutation - (usually plural) an acknowledgment or expression of good will (especially on meeting)

aloha, ciao - an acknowledgment that can be used to say hello or goodbye (aloha is Hawaiian and ciao is Italian)

handclasp, handshake, handshaking, shake - grasping and shaking a person's hand (as to acknowledge an introduction or to agree on a contract)

apology - an expression of regret at having caused trouble for someone; "he wrote a letter of apology to the hostess"

mea culpa - an acknowledgment of your error or guilt

condolence, commiseration - an expression of sympathy with another's grief; "they sent their condolences"

regrets, declination - a polite refusal of an invitation

admission - an acknowledgment of the truth of something

thanks - an acknowledgment of appreciation