1. (noun)act, enactment a legal document codifying the result of deliberations of a committee or society or legislative body
2. (noun)act, deed, human action, human activity something that people do or cause to happen
3. (noun)act a subdivision of a play or opera or ballet
4. (noun)act, routine, number, turn, bit a short theatrical performance that is part of a longer program "he did his act three times every evening"; "she had a catchy little routine"; "it was one of the best numbers he ever did"
5. (verb)act a manifestation of insincerity "he put on quite an act for her benefit"
6. (verb)act, move perform an action, or work out or perform (an action) "think before you act"; "We must move quickly"; "The governor should act on the new energy bill"; "The nanny acted quickly by grabbing the toddler and covering him with a wet towel"
7. (verb)act, behave, do behave in a certain manner; show a certain behavior; conduct or comport oneself "You should act like an adult"; "Don't behave like a fool"; "What makes her do this way?"; "The dog acts ferocious, but he is really afraid of people"
8. (verb)act, play, represent play a role or part "Gielgud played Hamlet"; "She wants to act Lady Macbeth, but she is too young for the role"; "She played the servant to her husband's master"
9. (verb)act discharge one's duties "She acts as the chair"; "In what capacity are you acting?"
10. (verb)act, play, act as pretend to have certain qualities or state of mind "He acted the idiot"; "She plays deaf when the news are bad"
11. (verb)act be suitable for theatrical performance "This scene acts well"
12. (verb)work, act have an effect or outcome; often the one desired or expected "The voting process doesn't work as well as people thought"; "How does your idea work in practice?"; "This method doesn't work"; "The breaks of my new car act quickly"; "The medicine works only if you take it with a lot of water"
13. (verb)act be engaged in an activity, often for no particular purpose other than pleasure
14. (verb)dissemble, pretend, act behave unnaturally or affectedly "She's just acting"
15. (verb)act, play, roleplay, playact perform on a stage or theater "She acts in this play"; "He acted in `Julius Caesar'"; "I played in `A Christmas Carol'"
1. (noun)act an action by sb an act of kindness; a vicious act
2. act put on an act a law the Federal Clean Air Act
3. act one part of a theater performance act two of the play
4. act get in on the act to become involved in sth already started Now is your chance to get in on the act and help.
5. act get your act together to organize yourself more effectively It's time to get my act together and study.
6. (verb)act to perform in a play, film, etc. She's currently acting on Broadway.; to act the part of Harry Potter
7. act to behave in a particular way acting suspiciously; Act as if you already know.
8. act to take action to achieve The government must act now.
Definition of 'Act'
Webster Dictionary
1. (noun)Act that which is done or doing; the exercise of power, or the effect, of which power exerted is the cause; a performance; a deed
2. (noun)Act the result of public deliberation; the decision or determination of a legislative body, council, court of justice, etc.; a decree, edit, law, judgment, resolve, award; as, an act of Parliament, or of Congress
3. (noun)Act a formal solemn writing, expressing that something has been done
14. (verb)Act to perform actions; to fulfill functions; to put forth energy; to move, as opposed to remaining at rest; to carry into effect a determination of the will
15. (verb)Act to behave or conduct, as in morals, private duties, or public offices; to bear or deport one's self; as, we know not why he has acted so
16. (verb)Act to perform on the stage; to represent a character
Definitions of Act 
Afrikaans: doen
Arabic: يَعْمَل، يَقُوم بِعَمَل
Bulgarian: действам
Brazilian: agir
Czech: jednat, konat
German: handeln
Danish: handle; foretage sig noge
Greek: ενεργώ
Spanish: actuar
Estonian: tegutsema
Farsi: اقدام کردن
Finnish: toimia
French: agir
Hebrew: לִפעוֹל
Hindi: काम करना
Croatian: djelovati
Hungarian: cselekszik, tesz
Indonesian: bertindak
Icelandic: aðhafast, gera
Italian: agire
Japanese: 行動する
Korean: 조치를 취하다
Lithuanian: veikti
Latvian: darboties; rīkoties
Malay: mengambil tindakan
Dutch: optreden
Norwegian: handle, foreta seg noe, g
Polish: działać
Persian: اقدام کردن
Pashto: اقدام كول
Portuguese: agir
Romanian: a acţiona
Russian: действовать
Slovak: jednať, konať
Slovenian: ukrepati
Serbian: pristupiti
Swedish: handla
Thai: ปฏิบัติ
Turkish: harekete geçmek
Taiwanese: 採取行動
Ukrainian: діяти, працювати
Urdu: کرنا
Vietnamese: hành động
Chinese: 做事，行事，行动，采取行动
