Homograph

A homograph (from the Greek: ὁμός, homós, "same" and γράφω, gráphō, "write") is a word that shares the same written form as another word but has a different meaning. However, some dictionaries insist that the words must also sound differently, while the Oxford English Dictionary says that the words should also be of "different origin". In this vein, The Oxford Guide to Practical Lexicography lists various types of homographs, including those in which the words are discriminated by being in a different word class, such as hit, the verb to strike, and hit the noun a blow.

If, when spoken, the meanings may be distinguished by different pronunciations, the words are also heteronyms. Words with the same writing and pronunciation (i.e. are both homographs and homophones) are considered homonyms. However, in a looser sense the term "homonym" may be applied to words with the same writing or pronunciation. Homograph disambiguation is critically important in speech synthesis, natural language processing and other fields. Identically-written different senses of what is judged to be fundamentally the same word are called polysemes; for example, wood (substance) and wood (area covered with trees).

Examples:

The words are identical in spelling and pronunciation (i.e. they are also homophones), but differ in meaning and grammatical function.

The two words are spelt identically but pronounced differently. Here confusion is not possible in spoken language but could occur in written language.

Many Chinese varieties have homographs, called (pinyin: duōyīnzì) or (pinyin: chóngxíngzì), (pinyin: pòyīnzì).

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