noun

  1. teacher, instructor, master.

noun, noun used as a suffix

Honorific or respectful language.
  1. sensei, title or form of address for a teacher, master, doctor, lawyer, etc..

noun

  1. intimate or teasing form of address. Familiar language, jocular, humorous term.
  2. one's elder. Archaism. Orig. meaning.

Variations

Pronunciation Kanji Kana Is Common
先生 せんせい

Contained Kanji Breakdown

before, ahead, previous
セン さき ま.ず (1st, N5)
legs radical (no. 10)
ジン ニン がい (Kentei 1)
life, genuine, birth
セイ い.きる う.まれる (1st, N5)