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QUIZ
SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
Should you take this quiz on “shall” versus “should”? It should prove to be a quick challenge!
Question 1 of 6
Which form is used to state an obligation or duty someone has?

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. 2022

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

Medical definitions for Ir (1 of 3)

ir- 22

pref.
Variant ofin-2

Medical definitions for Ir (2 of 3)

ir- 11

pref.
Variant ofin-1

Medical definitions for Ir (3 of 3)

Ir

The symbol for the elementiridium
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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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