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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 suit claims they failed to take action despite Vidal’s testimony vindicating Saldana.

From Los Angeles Times Nov. 17, 2025

Th western parts of the country saw widespread flooding and damage to properties brought on by the hurricane.

From BBC Nov. 7, 2024

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 Israeli military did not confirm the death but said its troops came under attack overnight when two military vehicles stalled just outside the town of Beit Ummar, near the city of Hebron.

From Reuters Nov. 29, 2022

Th e next morning, Chiron moved me to cabin three.

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

From Over the Top by Arthur Guy Empey

Strength -th is a true word; fowl or fugel -l is no true word.

From A Handbook of the English Language by R. G. (Robert Gordon) Latham

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

From History of Phoenicia by George Rawlinson

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

Th. translates 'on the roaring sea,' but adds 'quite conjectural.'

From Elene; Judith; Athelstan, or the Fight at Brunanburh; Byrhtnoth, or the Fight at Maldon; and the Dream of the Rood Anglo-Saxon Poems by James Mercer Garnett

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

For the time taken for its composition and the poet's anticipations of immortality see Th. xii.

From Post-Augustan Poetry From Seneca to Juvenal by Harold Edgeworth Butler

Puis Th. n'osa pas demurrer; mes dit qil ne fuit pas soun villein de soun manoire de C. Prest etc.

From Villainage in England Essays in English Mediaeval History by Paul Vinogradoff

V. A. Th. denotes a text in the Berlin Museum.

From Babylonian and Assyrian Laws, Contracts and Letters by C. H. W. (Claude Hermann Walter) Johns

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

That’s a conservative estimate, as Atul Gawande of Harvard’s T.H.

From Salon Jan. 4, 2026

And Sidgwick has been far more successful than any other moral philosopher with the exception of T.H.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" by Various

Klymochko noticed in th e 8-K filing External link by Taylor Morrison on Monday that the two companies signed a confidentiality agreement on May 27.

From Barron's Jun. 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

Some of the band’s greatest hits include “Uma Thurman,” “Sugar, We’re Goin Down,” “Dance, Dance” and “Thnks fr th Mmrs.”

From Los Angeles Times Jan. 19, 2023

He pronounced them with the Castilian th sound, that is, with a lisp, an affectation peculiar to many of the Miracle Valley’s old-timers, whereas it could not be found farther south in Mexico.

From "The Milagro Beanfield War" by John Nichols