integer

noun

in·​te·​ger ˈin-ti-jər 

1

: any of the natural numbers, the negatives of these numbers, or zero

2

: a complete entity

Synonyms of integer

• digit
• number

Examples of integer in a Sentence

Both 10 and -10 are integers.

three is a positive integer

Recent Examples on the Web

When Ars first reported on AcuRite in May, AcuRite NOW lacked some features of My AcuRite, including the ability to rename multiple temperature sensors, report temperatures in non-integers, as well as an online dashboard option. —Scharon Harding, ArsTechnica, 11 June 2026

The number 3, for example, is simultaneously an integer, a natural number, and a real number. —Quanta Magazine, 8 June 2026

That’s because for 99% of human history, information arrived into brains mainly as whole integers – as people, things and events. —Owen D. Jones, The Conversation, 26 May 2026

Instead of relying on traditional geometry tricks, the AI connected the problem to algebraic number theory, a deep branch of mathematics that studies number systems extending ordinary integers. —Aamir Khollam, Interesting Engineering, 20 May 2026

Word History

Etymology

Latin, adjective, whole, entire — more at entire entry 1

First Known Use

1571, in the meaning defined at sense 1

Kids Definition

integer

noun

in·​te·​ger ˈint-i-jər 

: a number that is a natural number (as 1, 2, or 3), the negative of a natural number, or 0

called also whole number