- Japanese has many onomatopoeia and mimetic words, around 2,000-3,000, that are commonly found in manga. Onomatopoeia express sounds while mimetic words express feelings or sensations. - Examples of onomatopoeia include "wanwan" for barking and "bu-bu" for oinking. Examples of mimetic words include "iraira" for irritation and "dokidoki" for a strongly beating heart. - These words are often used to describe feelings and sensations like being irritated by someone's attitude or one's heart beating strongly from nervousness.