[VERB 动词]承认（事实、局面等） If you acknowledge a fact or a situation, you accept or admit that it is true or that it exists.
[V that]
[V n]
[V-ed]
[Also V n to-inf]
[FORMAL 正式]
Naylor acknowledged, in a letter to the judge, that he was a drug addict...
内勒在给法官的信中承认自己吸毒。
Belatedly, the government has acknowledged the problem...
政府迟迟才承认了该问题。
There is an acknowledged risk of lung cancer from radon.
氡被认为有诱发肺癌的危险。
2
[VERB 动词]公认，认可（某人的成就、地位、品质等） If someone's achievements, status, or qualities are acknowledged, they are known about and recognized by a lot of people, or by a particular group of people.
[be V-ed as n]
[V n]
[Also V n to-inf]
He is also acknowledged as an excellent goalkeeper...
他也被公认为是一名出色的守门员。
Some of the clergy refused to acknowledge the new king's legitimacy.
一部分神职人员拒绝承认新国王的合法地位。
3
[VERB 动词]告知（信函等）的收到；确认…收悉 If you acknowledge a message or letter, you write to the person who sent it in order to say that you have received it.
[V n]
The army sent me a postcard acknowledging my request.
军队寄给我一张明信片告知我的申请书已收到。
4
[VERB 动词]（以点头、微笑等）向…打招呼，理会 If you acknowledge someone, for example by moving your head or smiling, you show that you have seen and recognized them.
[V n]
He saw her but refused to even acknowledge her.
他看见了她，却连招呼也不打。
5
[VERB 动词]（对掌声、赞扬、好意等作出姿态表示）感谢 If you acknowledge someone's applause, compliments, or kindness you make a gesture in order to thank them or show your appreciation.
[V n]
[V n with n]
Doran stuck his head out of the window to acknowledge the cheering...
多兰将头探出窗户向欢呼的人们致谢。
She never even acknowledged the man who opened the door for her...
她对为自己开门的男士甚至连一点表示都没有。
He acknowledged the applause with a small bow.
他微微地鞠了一躬表示对掌声的感谢。
Oxford
ac·know·ledge★AWL/əkˈnɒlɪdʒ; NAmEəkˈnɑːlɪdʒ/verbadmit 承认1★to accept that sth is true 承认（属实）acknowledgesth ◆She refuses to acknowledge the need for reform.她拒不承认改革的必要性。◆a generally acknowledged fact公认的事实acknowledgethat… ◆I did not acknowledge that he had done anything wrong.我没有承认他犯了什么错。acknowledgesth to be, have, etc. sth ◆It is generally acknowledged to be true.普遍认为那是真的。☞synonyms at
admit
accept status 承认地位2★to accept that sb/sth has a particular authority or status 承认（权威、地位）SYN
recognize
acknowledgesb/sth ◆The country acknowledged his claim to the throne.这个国家承认了他继承王位的权利。acknowledgesb/sth as sth ◆He is widely acknowledged as the best player in the world.普遍认为他是世界最佳球员。acknowledgesb/sth to be, have, etc. sth ◆He is widely acknowledged to be the best player in the world.普遍认为他是世界最佳球员。reply to letter 覆信3acknowledgesth to tell sb that you have received sth that they sent to you 告知收悉◆All applications will be acknowledged.所有的申请都将得到覆函告知收悉。◆Please acknowledge receipt of this letter.信收到后请覆函告知。smile/wave 微笑；挥手4acknowledgesb/sth to show that you have noticed sb/sth by smiling, waving, etc. （微笑、挥手等）致意◆I was standing right next to her, but she didn't even acknowledge me.我就站在她身边，可是她理都不理我。express thanks 表示感谢5acknowledgesth to publicly express thanks for help you have been given （公开）感谢◆I gratefully acknowledge financial support from several local businesses.我对几家本地企业的资助表示感谢。acknowledgeacknowledgesacknowledgedacknowledgingac·know·ledge/əkˈnɒlɪdʒ; NAmEəkˈnɑːlɪdʒ/
1admit to admit or accept that something is true or that a situation exists: The family acknowledge the need for change.acknowledge that He acknowledges that when he’s tired he gets bad-tempered. Claire acknowledged that she was guilty. The government must acknowledge what is happening and do something about it. ‘Maybe you are right,’ she acknowledged. This is a fact that most smokers readily acknowledge.► see thesaurus at
admit
GRAMMARIn more formal English, you say it is acknowledged that when saying what people generally agree is true: · It is acknowledged that these letters are genuine.2recognize something’s importance if people acknowledge something, they recognize how good or important it is: The Brazilian coach acknowledged the talent of his players.be acknowledged as something The film festival is acknowledged as an event of international importance.be widely/generally acknowledged to be something The mill produces what is widely acknowledged to be the finest wool in the world.3accept somebody’s authority to accept that someone or something has authority over people: Both defendants refused to acknowledge the authority of the court.acknowledge somebody as something Many of the poor acknowledged him as their spiritual leader.4thank to publicly announce that you are grateful for the help that someone has given you: We wish to acknowledge the support of the university.5show you notice somebody to show someone that you have noticed them or heard what they have said: Tom acknowledged her presence by a brief glance.6say you have received something to let someone know that you have received something from them: I would be grateful if you would acknowledge receipt of this letter.