Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “active”

See all translations

active

adjective  /ˈæk·tɪv/ us  

active adjective (DOING SOMETHING)

doing something as you usually do, or being able to do something physically or mentally: He was still an active runner at 55. She’s active in state politics (= involved in it). She intends to remain politically active. His National Guard unit was put on active duty (= made part of the regular fighting force). An active volcano is one that might begin to throw out hot gases, liquid, or rocks at any time.

active adjective (GRAMMAR)

grammar [not gradable] describing a verb or sentence in which the subject is the person or thing that does what is stated: In "Alex gave me a gift," the verb "give" is active, and in "I was given a gift by Alex," "give" is passive.
actively
adverb  /ˈæk·tɪv·li/ us  
He isn’t actively involved in the day-to-day management of the business anymore.
(Definition of active from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of active?
Add Cambridge dictionaries to your browser to your website

More American English definitions for “active”

Definitions of “active” in other dictionaries

Word of the Day

past participle

the form of a verb, usually made by adding -ed, used in some grammatical structures such as the passive and the present perfect

Word of the Day

Euphemisms (Words used to Avoid Offending People)

by Kate Woodford,
March 04, 2015
​​​ We recently looked at the language that we use to describe lies and lying. One area of lying that we considered was ‘being slightly dishonest, or not speaking the complete truth’. One reason for not speaking the complete truth is to avoid saying something that might upset or offend people. Words and

Read More 

snapchat verb

March 02, 2015
to send someone a message using the photomessaging application Snapchat We used to have a thing until he got a girlfriend. now

Read More