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Homonym

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For homonyms in scientific nomenclature, see Homonym (biology).

In linguistics, a homonym is one of a group of words that share the same spelling and the same pronunciation but have different meanings. Some sources only require that homonyms share the same spelling or pronunciation (in addition to having different meanings), but these are the definitions most other sources give for homographs and homophones respectively. The state of being a homonym is called homonymy. Examples of homonyms are stalk (which can mean either part of a plant or to follow someone around), bear (animal) and bear (carry), left (opposite of right) and left (past tense of leave). Some sources also consider the following trio of words to be homonyms, but others designate them as "only" homophones: to, too and two (actually, to, to, too, too and two, being "for the purpose of" as in "to make it easier", the opposite of "from", also, excessively, and "2", respectively). Some sources state that homonym meanings must be unrelated in origin (rather than just different). Thus right (correct) and right (opposed to left) would be polysemous (see below) and not be homonyms.

There is similar confusion about the definition of some of the related terms described below. This article explains what appear to be the "standard" meanings, and variant definitions are then summarised under "Terminological confusion".

The word "homonym" comes from the conjunction of the Greek prefix homo- (meaning same) and suffix -onym (meaning name). Thus, it refers to two or more distinct words sharing the "same name".

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Related terms

Same
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Different
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Same
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Different
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Image:Solid blue.svg Homonym

Image:Solid orange.svg Homograph

Image:Solid red.svg Homophone

Image:Solid purple.svg Heteronym/
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Several similar linguistic concepts are related to homonymy. The term 'homonym' is ambiguous because there are a number of ways that two meanings can share the 'same name' and because the term is used in different ways by educated speakers, and these variant meanings are recorded by dictionaries. The terms homograph and homophone are however usually defined the same way as meaning "same spelling" and "same sound" respectively, and heteronym and homonym can be seen as respective subclasses of these.

  • Homographs are words that share the same spelling. Homographs may be pronounced the same, in which case they are also homophones – for example, bark (the sound of a dog) and bark (the skin of a tree). Alternatively they may be pronounced differently, in which case they are also heteronyms – for example, row (argument) and row (propel with oars). ("Homograph" also has a specialised meaning in typography, where it may be used as a synonym for homoglyph.)
  • Homophones are words that share the same pronunciation. Homophones may be spelled the same (in which case they are also homographs) or spelled differently (in which case they are heterographs). Homographic examples include tire (to become weary) and tire (on the wheel of a car). Heterographic examples include to, too, two, and there, their, they’re.
  • Heteronyms can be seen as the subclass of homographs (words that share the same spelling) that have different pronunciations. That is, they are homographs which are not homophones. This means words that are spelled the same but with different pronunciations (and meanings). Such words include desert (to abandon) and desert (arid region). Heteronyms are also sometimes called heterophones. ("Heteronym" also has a specialized meaning in poetry; see Heteronym (literature).)
  • Homonyms can be seen as the subclass of homophones that are spelled the same, which is logically the same as the subclass of homographs that are pronounced the same. This means words that are spelled and pronounced the same (but have different meanings).
  • Polysemes are words with the same spelling and distinct but related meanings. The distinction between polysemy and homonymy is often subtle and subjective, and not all sources consider polysemous words to be homonyms. Words such as "mouth", meaning either the orifice on one's face, or the opening of a cave or river, are polysemous and may or may not be considered homonyms.
  • Capitonyms are words that share the same spelling but have different meanings when capitalized (and may or may not have different pronunciations). Such words include polish (to make shiny) and Polish (from Poland).

In derivation, homograph means "same writing", homophone means "same sound", heteronym (somewhat confusingly) means "different name", and heterophone means "different sound".

Terminological confusion

There is considerable confusion and contradiction in published sources about the distinction between homonyms, homographs, homophones and heteronyms. Significant variant interpretations include:

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