1. Concede the existence, reality or truth of
   "She acknowledged that she might have forgotten"; "she was the last to acknowledge the mistake";
   - admit
    
2. Express recognition of the presence or existence of, or acquaintance with
   "She acknowledged his compliment with a smile"; "it is important to acknowledge the work of others in one's own writing"; "He never acknowledges his colleagues when they run into him in the hallway";
   - notice
    
3. Accept (someone) to be what is claimed or accept their power and authority
   "The Crown Prince was acknowledged as the true heir to the throne";
   - recognize, recognise [Brit], know
    
4. Accept as legally binding and valid
   "acknowledge the deed"
    
5. Express obligation, thanks, or gratitude for
   "We must acknowledge the kindness she showed towards us";
   - recognize, recognise [Brit]
    
6. Report the receipt of
   "The program committee acknowledged the submission of the authors of the paper";
   - receipt

Derived forms: acknowledged, acknowledges, acknowledging

Type of: accept, adjudge, communicate, declare, give thanks, hold, pass, pass along, pass on, put across, react, reply, respond, thank

Antonym: deny

Encyclopedia: Acknowledge