Acknowledgment
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Acknowledgment can refer to:
- Acknowledgment (creative arts), a statement of gratitude for assistance in producing a work
- Acknowledgment (law), a declaration or avowal of one's own act, to give it legal validity
- Acknowledgment (electronic tax filing), an official electronic notice from the IRS or a state tax authority indicating whether or not the e-file was accepted and considered “filed” or rejected and considered “not filed.”
- Acknowledgment (social), a written thank you note expressing gratitude for gifts, assistance, or expressions of sympathy
- ACK (computing), a signal used to indicate acknowledgement, specifically:
- ACK (TCP), a packet used in TCP to acknowledge receipt of a packet
- Acknowledge character, an ASCII control character
- Negative-acknowledge character, an ASCII control character