精通
せいつうseitsuu
CommonNoun
Meanings
Meanings are shown in English (JMdict).
nounnoun or participle which takes suruintransitive verb
being well versed (in); being well acquainted (with); being familiar (with); having a thorough knowledge (of); being an authority (on)
(a boy's) first ejaculation; spermarche; semenarche
