Acknowledge vs. Thank

Acknowledgeverb

(transitive) To admit the knowledge of; to recognize as a fact or truth; to declare one's belief in

Acknowledgeverb

To own or recognize in a particular quality, character or relationship; to admit the claims or authority of; to give recognition to.

Acknowledgeverb

To be grateful of (e.g. a benefit or an favour)

Acknowledgeverb

To notify receipt, as of a letter.

Acknowledgeverb

To own as genuine or valid; to assent to (a legal instrument) to give it validity; to avow or admit in legal form.

Acknowledgeverb

To own 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.

Acknowledgeverb

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

Acknowledgeverb

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

Acknowledgeverb

To own as genuine; to assent to, as a legal instrument, to give it validity; to avow or admit in legal form; as, to acknowledge a deed.

Acknowledgeverb

declare to be true or admit the existence or reality or truth of;

Acknowledgeverb

report the receipt of;

Acknowledgeverb

express recognition of the presence or existence of, or acquaintance with;

Acknowledgeverb

express obligation, thanks, or gratitude for;

Acknowledgeverb

accept as legally binding and valid;

Acknowledgeverb

accept (someone) to be what is claimed or accept his power and authority;

Acknowledgeverb

accept or admit the existence or truth of

Acknowledgeverb

recognize the importance or quality of

Acknowledgeverb

express gratitude for or appreciation of

Acknowledgeverb

accept the validity or legitimacy of

Acknowledgeverb

show that one has noticed or recognized (someone) by making a gesture or greeting

Acknowledgeverb

confirm (receipt of something)

Thanknoun

(obsolete) An expression of appreciation; a thought.

Thankverb

(transitive) To express gratitude or appreciation toward.

Thankverb

(transitive) To feel gratitude or appreciation toward.

Thankverb

(transitive) To credit or hold responsible.

Thanknoun

A expression of gratitude; an acknowledgment expressive of a sense of favor or kindness received; obligation, claim, or desert, or gratitude; - now generally used in the plural.

Thankverb

To express gratitude to (anyone) for a favor; to make acknowledgments to (anyone) for kindness bestowed; - used also ironically for blame.

Thankverb

express gratitude or show appreciation to