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• inf
  inf

  abbreviation

  infimum.
• INF
  INF

  noun

  European-based U.S. nuclear weapons that were capable of striking the Soviet Union and Soviet ones that could hit Western Europe (usually used attributively).
• Inf.
  Inf.

  abbreviation

  infantry.

inf

¹ American  

abbreviation

1. Mathematics. infimum.

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INF ² American  

[inf] / ɪnf /

noun

1. European-based U.S. nuclear weapons that were capable of striking the Soviet Union and Soviet ones that could hit Western Europe (usually used attributively).

   INF missiles;

   the 1987 INF Treaty.

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Inf. ³ American  

abbreviation

1. infantry.

2. infuse.

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inf ¹ British  

abbreviation

1. infinitive

2. informal

3. infra

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INF ² British  

abbreviation

1. intermediate-range nuclear forces: land-based missiles and aircraft with a range between 500 and 5000 km

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Etymology

Origin of INF²

First recorded in 1980–85; abbreviation of I(ntermediate-range) N(uclear) F(orces)

Origin of Inf.³

Inf. ( def. 2 ) < Latin infunde

Example Sentences

Asked for comment about its deal with Indosat, INF said it doesn’t do any research with military applications and complies with U.S. export controls.

From The Wall Street Journal • Nov. 13, 2025

When operational, the person said, they will focus on helping INF train AI for financial applications and science research, such as drug discovery.

From The Wall Street Journal • Nov. 13, 2025

A’s: INF Ryan Noda was scratched from the starting lineup after taking a pitch off his left hand during early batting practice.

From Seattle Times • Apr. 9, 2024

“The number could grow the longer INF is put in place,” the official said, using the acronym for immediate needs funding.

From Scientific American • Sep. 28, 2023

—The Reagan-Gorbachev INF treaty was signed on December 8, 1987, exactly seven years after John Lennon was killed.

From "Innumeracy: Mathematical Illiteracy and Its Consequences" by John Allen Paulos