acknowledge

v. recognize, admit; confess; certify the receipt of

Acknowledgment (also spelled acknowledgement) can refer to:Acknowledgment (creative arts) (and scientific literature and writing), a statement of gratitude for assistance in producing a workAcknowledgment index, an experimental method for analyzing the scientific literatureAcknowledgment (law), a declaration or avowal of one's own act, to give it legal validityAcknowledgment of serviceAcknowledgment (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
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Verb
1. declare to be true or admit the existence or reality or truth of; "He admitted his errors"; "She acknowledged that she might have forgotten"
(synonym) admit
(hypernym) declare, adjudge, hold
(hyponym) attorn
(derivation) recognition, acknowledgment, acknowledgement
2. report the receipt of; "The program committee acknowledged the submission of the authors of the paper"
(synonym) receipt
(hypernym) communicate, pass on, pass, put across
3. express recognition of the presence or existence of, or acquaintance with; "He never acknowledges his colleagues when they run into him in the hallway"; "She acknowledged his complement with a smile"; "it is important to acknowledge the work of others in one's own writing"
(synonym) notice
(hypernym) react, respond
(hyponym) mention, cite
(derivation) citation, acknowledgment, credit, reference, mention, quotation
4. express obligation, thanks, or gratitude for; "We must acknowledge the kindness she showed towards us"
(synonym) recognize, recognise
(hypernym) thank, give thanks
(hyponym) appreciate
(derivation) acknowledgment, acknowledgement
5. accept as legally binding and valid; "acknowledge the deed"
(hypernym) accept
6. accept (someone) to be what is claimed or accept his power and authority; "The Crown Prince was acknowledged as the true heir to the throne"; "We do not recognize your gods"
(synonym) recognize, recognise, know
(hypernym) accept
(derivation) recognition, acknowledgment, acknowledgement

(v. t.)
To own with gratitude or as a benefit or an obligation; as, to acknowledge a favor, the receipt of a letter.
  

(v. t.)
To own or recognize in a particular character or relationship; to admit the claims or authority of; to give recognition to.
  

(v. t.)
To own as genuine; to assent to, as a legal instrument, to give it validity; to avow or admit in legal form; as, to acknowledgea deed.
  

(v. t.)
To of or admit the knowledge of; to recognize as a fact or truth; to declare one's belief in; as, to acknowledge the being of a God.
  

[ICAO]
Let me know that you have received and understood this message.
  

Let me know that you have received my message.
(See ICAO term ACKNOWLEDGE.)