noun, takes する, intransitive verb

  1. being well versed (in), being well acquainted (with), being familiar (with), having a thorough knowledge (of), being an authority (on).
  2. (a boy's) first ejaculation, spermarche, semenarche.

Variations

Pronunciation Kanji Kana Is Common
精通 せいつう

Contained Kanji Breakdown

refined, ghost, fairy
セイ ショウ しら.げる (5th, N3)
rice, USA, metre
ベイ こめ マイ (2nd, N3)
to divide
tree, wood
き モク こ- (1st, N5)
blue, green
あお セイ お (1st, N4)
life (生) variant
month, moon
つき ゲツ ガツ (1st, N5)
traffic, pass through, avenue
ツウ とお.る かよ.う (2nd, N4)
road with walls on both sides
ヨウ (Kentei 1)
ma
utilize, business, service
ヨウ もち.いる たから (2nd, N4)
month, moon
つき ゲツ ガツ (1st, N5)
number one, line, rod radical (no. 2)
コン シ ジョ