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Th

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Symbol, Chemistry.
thorium.
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Which of the following nouns has an irregular plural form?

Other definitions for Th (2 of 6)

-th1

a suffix forming nouns of action (birth) or abstract nouns denoting quality or condition (depth; length; warmth).

Origin of -th

1
Middle English -th(e), Old English -thu, -tho, -th (variant -t after a velar, f, or s); cognate with Gothic -itha,Latin -tus,Greek -tos

Other definitions for Th (3 of 6)

-th2

a suffix used in the formation of ordinal numbers (fourth, tenth), in some cases, added to altered stems of the cardinal (fifth; twelfth).

Origin of -th

2
Middle English -the, -te,Old English -tha, -the (variant -ta after f or s); cognate with Old Norse -thi, -di,Latin -tus,Greek -tos;see -eth2

Other definitions for Th (4 of 6)

-th3

variant of -eth1: doth.

Other definitions for Th (5 of 6)

Th.

abbreviation
Thursday.

Other definitions for Th (6 of 6)

T.H.

abbreviation
Territory of Hawaii.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use Th in a sentence

British Dictionary definitions for Th (1 of 4)

th

the internet domain name for
Thailand

British Dictionary definitions for Th (2 of 4)

Th

the chemical symbol for
thorium

British Dictionary definitions for Th (3 of 4)

-th1

suffix forming nouns
(from verbs) indicating an action or its consequencegrowth
(from adjectives) indicating a qualitywidth

Word Origin for -th

from Old English -thu, -tho

British Dictionary definitions for Th (4 of 4)

-th2

-eth


suffix
forming ordinal numbersfourth; thousandth

Word Origin for -th

from Old English -(o) tha, -(o) the
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 Th

Th

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

Scientific definitions for Th

Th

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