noun

• (uncountable) The property of a word that sounds like what it represents.
• (countable) A word that sounds like what it represents, such as "gurgle", "stutter", or "hiss".
• (countable) A word that appropriates a sound for another sensation or a perceived nature, such as "thud", "beep", or "meow"; an ideophone, phenomime.
• (uncountable, rhetoric) The use of language whose sound imitates that which it names.