Short for 親不知歯 (oyashirazu-ba, literally “parents not-knowing tooth”). a wisdom tooth (from the likelihood that the wisdom teeth do not erupt until after no longer in daily contact with one's paren...

a surname

Abbreviation of コーポレートアイデンティティ (kōporēto aidentiti, “corporate identity”).

Synonym of ニヒリズム (nihirizumu, “nihilism”)