sensei(redirected from O-sensei)
n. pl. sen·seis
1. A teacher or mentor, especially of a martial art.
2. Used as a form of address for such a person.
[Japanese, teacher, master, from Middle Chinese sianʂa⋮jŋ, elder, prior-born (term of respect) (also the source of Mandarin xiānsheng) : sian, first + ʂa⋮jŋ, to give birth, be born (ultimately from Proto-Sino-Tibetan *sriŋ, live, life; also the source of Burmese hrang, live, alive).]
n, pl sensei
(Judo & Karate) a Japanese title for a teacher, master, or professional; (in English) used esp for a martial arts teacher
[Japanese: teacher, leader]