Rhyming

A rhyme is a repetition of similar sounds (or the same sound) in two or more words, most often in the final syllables of lines in poems and songs. The word rhyme is also a pars pro toto ("a part (taken) for the whole") that means a short poem, such as a rhyming couplet or other brief rhyming poem such as nursery rhymes.

Rhyme partly seems to be enjoyed simply as a repeating pattern that is pleasant to hear. It also serves as a powerful mnemonic device, facilitating memorization. The regular use of tail rhyme helps to mark off the ends of lines, thus clarifying the metrical structure for the listener. As with other poetic techniques, poets use it to suit their own purposes; for example William Shakespeare often used a rhyming couplet to mark off the end of a scene in a play.

The word rhyme can be used in a specific and a general sense. In the specific sense, two words rhyme if their final stressed vowel and all following sounds are identical; two lines of poetry rhyme if their final strong positions are filled with rhyming words. A rhyme in the strict sense is also called a perfect rhyme. Examples are sight and flight, deign and gain, madness and sadness.

Perfect rhymes can be classified according to the number of syllables included in the rhyme, which is dictated by the location of the final stressed syllable.

In the general sense, general rhyme can refer to various kinds of phonetic similarity between words, and to the use of such similar-sounding words in organizing verse. Rhymes in this general sense are classified according to the degree and manner of the phonetic similarity:

Identical rhymes are considered less than perfect in English poetry; but are valued more highly in other literatures such as, for example, rime riche in French poetry.

Though homophones and homonyms satisfy the first condition for rhyming—that is, that the stressed vowel sound is the same—they do not satisfy the second: that the preceding consonant be different. As stated above, in a perfect rhyme the last stressed vowel and all following sounds are identical in both words.

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