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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.

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

From Los Angeles Times • Nov. 17, 2025

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

From Los Angeles Times • Mar. 31, 2025

Th M23's advance has resulted in tens of thousands being forced from their homes - adding to the the nearly seven million who have fled because of multiple conflicts in the east.

From BBC • Feb. 15, 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 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