app

1 of 2

noun

ˈap 

1

: application sense 3

a word processing app

especially : an application designed for a mobile device (such as a smartphone)

Health-insurance companies and government officials alike are drawn to the ability of smartphone apps to reach tough-to-access patients, to effect long-term lifestyle changes, and to do it all at a very low cost.

—Marcellus Hall

see also killer app

2

informal : appetizer

… the hidden video monitors that tell the cooks when the V.I.P.'s have finished their apps …

—Thomas McNamee

app

2 of 2

abbreviation

1

apparatus

2

appendix

3

appliance

Examples of app in a Sentence

Recent Examples on the Web

Noun

Be Filmed at These Glamorous Hotels The Vogue Runway app has expanded! —Nicole Kliest, Vogue, 22 May 2026

Takeout menus and delivery apps deliver all four faster than a 40-minute recipe ever could. —Lauren Jarvis-Gibson, Fort Worth Star-Telegram, 22 May 2026

If patients test positive, the app provides information on booking follow-up care appointments. —Helen Carefoot, Flow Space, 22 May 2026

The app companies are being accommodated at the expense of the wellbeing of pedestrians. —Michael Miller, New York Daily News, 22 May 2026

Word History

First Known Use

Noun

1981, in the meaning defined at sense 1

Phrases Containing app

• killer app

Rhymes for app

• cap
• chap
• clap
• crap
• flap
• frap
• gap
• hap
• lap
• nap
• nappe
• pap

Kids Definition

app

noun

ˈap

1

: application sense 6

2

informal : appetizer

Medical Definition

app

1 of 2 abbreviation

appendix

APP

2 of 2 abbreviation

amyloid precursor protein

Legal Definition

App

abbreviation

Appeals