1. seiyuu - Noun
2. seiyuu - Verb
seiyuu (plural seiyuu or seiyuus)
A voice actor in a native-language version anime, a video game, a radio broadcast or an advertisement in Japan.
seiyuu (third-person singular simple present seiyuus, present participle seiyuuing, simple past and past participle seiyuued)
To take on a role as a voice actor in a Japanese production, or perform a certain character in such a production.