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  • Th
    Th
    thorium.
  • -th
    -th
    a suffix forming nouns of action (birth ) or abstract nouns denoting quality or condition (depth; length; warmth ).
  • Th.
    Th.
    abbreviation
    Thursday.
  • T.H.
    T.H.
    abbreviation
    Territory of Hawaii.
  • th
    th
    abbreviation
    Thailand

Th

1 American  
Symbol, Chemistry.
  1. thorium.


-th 2 American  
  1. a suffix forming nouns of action (birth ) or abstract nouns denoting quality or condition (depth; length; warmth ).


-th 3 American  
  1. a suffix used in the formation of ordinal numbers (fourth, tenth ), in some cases, added to altered stems of the cardinal (fifth; twelfth ).


-th 4 American  
  1. variant of -eth.

    doth.


Th. 5 American  

abbreviation

  1. Thursday.


T.H. 6 American  

abbreviation

  1. Territory of Hawaii.


-th 1 British  

suffix

  1. (from verbs) indicating an action or its consequence

    growth

  2. (from adjectives) indicating a quality

    width

"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

-th 2 British  

suffix

  1. forming ordinal numbers

    fourth

    thousandth

"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

Th 3 British  

symbol

  1. thorium

"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

th 4 British  

abbreviation

  1. Thailand

"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

Etymology

Origin of -th2

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

Origin of -th3

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 -eth 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Th couple tried to get some sleep, with a chair against the room door, before getting up in the morning.

From BBC Aug. 4, 2026

Th clinic administers psychological help, reconstructive surgery and prosthetics to victims for free.

From BBC Apr. 10, 2025

Th Department of Health and Human Services did not reply to requests from The Times.

From Los Angeles Times Mar. 31, 2025

Th Anne Arundel County Police Department said motorists should anticipate heavy delays in Annapolis and Kent Island for an extended period of time.

From Seattle Times Jan. 27, 2024

Th e next few days I settled into a routine that felt almost normal, if you don’t count the fact that I was getting lessons from satyrs, nymphs, and a centaur.

From "The Lightning Thief" by Rick Riordan

Which, he notes, is not the case with, say, "big thing" or "big thighs," both of which give your tongue the space to bridge that awkward transition from "-ig" to "-th."

From Seattle Times May 19, 2011

The inflexions of the 3rd pers. prs. sg. are -th and -s.

From Torrent of Portyngale by Unknown

The next evening we were relieved by the -th Brigade, and once again returned to rest billets.

From Over the Top by Arthur Guy Empey

The present singular, 3rd person, of the indicative, ends both in -es or -s, and -eth or -th, the former being the more usual.

From The Lay of Havelok the Dane by Unknown

The ordinary termination of feminine singular nouns is -th, not -h.

From History of Phoenicia by George Rawlinson

Besides the cultivation of their plantation the Messrs. Th. plied a flourishing trade in coprah and sandalwood all along the west coast of Santo, which they visited frequently in their cutter.

From Two Years with the Natives in the Western Pacific by Felix Speiser

A few days later I started for Hog Harbour, for the plantation of the Messrs. Th., near which I meant to attend a great feast, or “sing-sing.”

From Two Years with the Natives in the Western Pacific by Felix Speiser

His pictures were ranked with those of Th. de Keijser.

From The Standard Galleries - Holland by Esther Singleton

This identification is fully confirmed by the engraving made by Th. von Kessel for the Theatrum Pictorium, which shows how these two figures are placed in the composition.

From Giorgione by Herbert Cook

D From the preface to the exceedingly interesting collection by M. Th. de la Villemarqué, of the transmitted songs that are current amongst his Bas Breton countrymen.

From Blackwood's Edinburgh Magazine - Volume 55, No. 344, June, 1844 by Various

The statement’s authors, which included researchers from the Harvard T.H.

From The Wall Street Journal Jul. 20, 2026

A new nationwide study led by researchers at the Harvard T.H.

From Science Daily Feb. 24, 2026

Chronic loneliness is a serious, growing public health concern, says Dr. Jeremy Nobel, a professor at the Harvard T.H.

From Los Angeles Times Feb. 9, 2026

For example, a review in August 2025 led by Dr Andrew Baccarelli, dean of the Harvard T.H.

From BBC Jan. 16, 2026

A great step forward was made in 1859 by T.H.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" by Various

A surge in the Japanese currency sent th 10-year Treasury soaring.

From Barron's Aug. 1, 2026

The disease is caused by repeated blows to the head and has bee nfound in th ebrains of dozens of former NFL players.

From BBC Sep. 26, 2025

Gigi Hadid, 28, and her sister Bella Hadid, 27, two of the most famous fashion models in the world, were born in th U.S. and grew up in Southern California.

From Washington Times Nov. 28, 2023

Koepka, a four-time major champion who now plays on the upstart LIV Golf tour, is four shots ahead of the field after a birdie at th par-5 15th pushed his score to 12 under.

From Seattle Times Apr. 7, 2023

The initial letter of a sen-tence was first capitalised in the 13 th century, but the rule was not consistently applied until the 16th.

From "Eats, Shoots & Leaves" by Author

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