US: /ˈæktɪv/
UK: /ˈæktɪv/

English Vietnamese dictionary

active /'æktiv/
  • tính từ
    • tích cực, hoạt động; nhanh nhẹn, linh lợi
      • an active volcano: núi lửa còn hoạt động
      • an active brain: đầu óc linh lợi
      • to take an active part in the revolutionary movement: tham gia tích cực phong trào cách mạng
    • thiết thực, thực sự; có hiệu lực, công hiệu
      • active remedies: những phương thuốc công hiệu
      • it's no use talking, he wants active help: nói mồm chẳng có ích gì, anh ấy cần sự giúp đỡ thiết thực cơ
    • (ngôn ngữ học) chủ động
      • the active voice: dạng chủ động
    • (quân sự) tại ngũ
      • on active service: đang tại ngũ
      • to be called up for the active service: được gọi nhập ngũ
      • active list danh sách sĩ quan: có thể gọi nhập ngũ
    • (vật lý) hoạt động; phóng xạ
    • hoá hoạt động; có hiệu lực
      • active ferment men: hoạt động
      • active valence: hoá trị hiệu lực

Advanced English dictionary

adjective, noun
+ adjective
1 always busy doing things, especially physical activities: Although he's nearly 80, he is still very active. + Before our modern age, people had a more physical and active lifestyle.
taking part
2 involved in sth; making a determined effort and not leaving sth to happen by itself: They were both politically active. + active involvement / participation / support / resistance + She takes an active part in school life. + The parents were active in campaigning against cuts to the education budget. + They took active steps to prevent the spread of the disease.
doing an activity
3 doing sth regularly; functioning: sexually active teenagers + animals that are active only at night + The virus is still active in the blood. + an active volcano (= likely to ERUPT)
4 lively and full of ideas: That child has a very active imagination.
5 having or causing a chemical effect: What is the active ingredient in aspirin?
6 connected with a verb whose subject is the person or thing that performs the action: In 'He was driving the car', the verb is active.
Compare: PASSIVE
actively adverb: Your proposal is being actively considered. + She was actively looking for a job.
+ noun (also active voice) [sing.] the form of a verb in which the subject is the person or thing that performs the action: In 'She drove the car', 'she' is the subject and the verb 'drove' is in the active.
Compare: PASSIVE

Thesaurus dictionary

1 strenuous, vigorous, full, dynamic, physical; energetic, lively, busy, brisk, bustling, occupied, on the move, Colloq on the go, running:
She is healthier for having led a very active life. He always seems to be active.
2 acting, effective, efficacious, effectual, working, functioning, operative, potent, influential; powerful:
The active ingredient in her medicine is an antihistamine.
3 energetic, lively, hyperactive, animated, spry, nimble, quick, agile, sprightly:
There is no keeping up with an active child.

Collocation dictionary


be | become | keep
Try to keep active in the cold weather.


extremely, highly, very
a highly active volcano
| increasingly | fairly, quite, reasonably | equally
a businessman who is equally active in politics
| mentally, physically
It's important to remain mentally active after retirement.
| sexually
A minority of children are sexually active before they are in their teens.
| economically, politically
When did you first become politically active?


drugs that are active against cancers
| in
She has been active in local politics for some years.

Concise English dictionary

+chemical agent capable of activity
+the voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb
+a person devoted to the active life
+tending to become more severe or wider in scope
+engaged in or ready for military or naval operations
+disposed to take action or effectuate change
+taking part in an activity
+characterized by energetic activity
+exerting influence or producing a change or effect
+full of activity or engaged in continuous activity
+in operation
+of the sun; characterized by a high level activity in sunspots and flares and radio emissions
+expressing that the subject of the sentence has the semantic function of actor: "Hemingway favors active constructions"
+expressing action rather than a state of being; used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')
+(of e.g. volcanos) capable of erupting
+(of e.g. volcanos) erupting or liable to erupt
+engaged in full-time work