せいつう

Common word

  1. noun (common) (futsuumeishi), noun or participle which takes the aux. verb suru, intransitive verb

    being well versed (in), being well acquainted (with), being familiar (with), having a thorough knowledge (of), being an authority (on)

    • 彼は英語に精通している。
      He is quite at home in English.
  2. noun (common) (futsuumeishi), noun or participle which takes the aux. verb suru, intransitive verb

    (a boy's) first ejaculation, spermarche, semenarche