usage: declare to be true or admit the existence or reality or truth of; "He admitted his errors"; "She acknowledged that she might have forgotten"
2. acknowledge, receipt, communicate, pass on, pass, pass along, put across
usage: report the receipt of; "The program committee acknowledged the submission of the authors of the paper"
3. notice, acknowledge, react, respond
usage: 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"
4. acknowledge, recognize, recognise, thank, give thanks
usage: express obligation, thanks, or gratitude for; "We must acknowledge the kindness she showed towards us"
5. acknowledge, accept
usage: accept as legally binding and valid; "acknowledge the deed"