Acronym

/ˈækrəˌnɪm/

Meaning & Definition

noun
A word formed from the initial letters of a phrase, typically consisting of the initial letters of each word.
NASA is an acronym for the National Aeronautics and Space Administration.
An abbreviation formed from the initial components in a phrase or a word.
The term 'scuba' is an acronym for Self-Contained Underwater Breathing Apparatus.
A type of abbreviation that is pronounced as a single word.
UNICEF is an acronym that stands for the United Nations Children's Fund.
An abbreviation consisting of the initial letters of each word in a phrase, often used for ease of communication.
The acronym FAQ stands for Frequently Asked Questions.
A shorthand way to refer to a complex term or phrase by using key letters.
The acronym ASAP means 'as soon as possible'.

Etymology

Coined in the 1940s from 'acro-' meaning 'top' or 'tip' and '-onym' meaning 'name'.

Common Phrases and Expressions

PIN number
Personal Identification Number, often redundantly repeated as 'number'.
ATM machine
Automated Teller Machine, where 'machine' is redundant.
NASA program
Refers generally to initiatives undertaken by NASA.

Related Words

initialism
An abbreviation consisting of the initial letters of words, pronounced letter by letter.
abbreviation
A shortened form of a word or phrase.
term
A word or expression used in a specific context.

Slang Meanings

Hip way to refer to something long
Just call it the 'W.I.F.E.' and everyone will know what you mean.
Casual shorthand in tech
The IT team loves their acronyms like 'API' and 'SaaS'.