Onomatopoeia

Onomatopoeia is a combination of speech sounds which alms at imitating sounds produced in nature (wind, sea, thunder, etc.) by things (machines or tools, etc.) by people (singing, laughter) and animals. Therefore the relation between onomatopoeia and the phenomenon it is supposed to represent is one of metonymy There are two varieties of onomatopoeia: direct and indirect.
Direct onomatopoeia is contained in words that imitate natural sounds, as ding-dong, burr, bang, cuckoo. These words have different degrees of imitative quality. Some of them immediately bring to mind whatever it is that produces the sound. Others require the exercise of a certain amount of imagination to decipher it. Onomatopoetic words can be used in a transferred meaning, as for instance, ding - dong, which represents the sound of bells rung continuously, may mean:
1) noisy,
2) strenuously contested.
Indirect onomatopoeia demands some mention of what makes the sound, as rustling of curtains in the following line. And the silken, sad, uncertain rustling of each purple curtain. Indirect onomatopoeia is a combination of sounds the aim of which is to make the sound of the utterance an echo of its sense. It is sometimes called "echo writing". An example is: And the silken, sad, uncertain rustling of each purple curtain" (E. A. Poe), where the repetition of the sound [s] actually produces the sound of the rustling of the curtain.

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