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Question 1 of 7
Which sentence is correct?

Other definitions for Ir (2 of 7)

Ir

Symbol, Chemistry.
iridium.

Other definitions for Ir (3 of 7)

IR

abbreviation
Football, Ice Hockey. injured reserve: Ending up on the IR so close to the end of the regular season may keep him off the ice for the entire Stanley Cup playoffs.
intelligence ratio.

Other definitions for Ir (4 of 7)

ir-1

variant of in-2 (by assimilation) before r: irradiate.

Other definitions for Ir (5 of 7)

ir-2

variant of in-3 (by assimilation) before r: irreducible.

Other definitions for Ir (6 of 7)

Ir.

abbreviation
Ireland.
Irish.

Other definitions for Ir (7 of 7)

I.R.

abbreviation
immediate reserve.
infantry reserve.
intelligence ratio.
internal revenue.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use Ir in a sentence

British Dictionary definitions for Ir (1 of 5)

ir

the internet domain name for
Iran

British Dictionary definitions for Ir (2 of 5)

Ir

the chemical symbol for
iridium

British Dictionary definitions for Ir (3 of 5)

IR

abbreviation for
infrared
(formerly, in Britain) Inland Revenue
Iran (international car registration)

British Dictionary definitions for Ir (4 of 5)

ir-

prefix
a variant of in- 1, in- 2

British Dictionary definitions for Ir (5 of 5)

Ir.

abbreviation for
Ireland
Irish
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for Ir

Ir

The symbol for iridium.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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