Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “officer”

See all translations

officer

noun [C]
 
 
/ˈɒfɪsər/
MILITARY B2 someone with an important job in a military organization: an army/naval officer People in charge of or controlling other peopleBosses, managers and directorsRanks in the Army
GOVERNMENT B1 someone who works for a government department: a customs officer a prison officerGovernment ministers and civil servants
POLICE B1 a police officer: a uniformed officer →  See also probation officer People who work for the police service
(Definition of officer from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Definitions of “officer” in other dictionaries

Word of the Day

sail

When a boat or a ship sails, it travels on the water.

Word of the Day

Byronic, Orwellian and Darwinian: adjectives from names.

by Liz Walter,
April 15, 2015
Becoming an adjective is a strange kind of memorial, but it is often a sign of a person having had real influence on the world. Science is full of examples, from Hippocrates, the Greek medic born around 460 BC, who gave his name to the Hippocratic Oath still used by doctors today,

Read More 

dumbwalking noun

April 20, 2015
walking slowly, without paying attention to the world around you because you are consulting a smartphone He told me dumbwalking probably wouldn’t be a long-term problem.

Read More