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精通せいつう

#15,109

Inflections of 精通
Common
せいつう
Meaning
    1. ①
      being well versed (in); being well acquainted (with); being familiar (with); having a thorough knowledge (of); being an authority (on)
      彼かれは英語えいごに精通せいつうしている。
      He is quite at home in English.
    2. ②
      (a boy's) first ejaculation; spermarche; semenarche
    1. ①
      EN Spermarche—also known as semenarche—refers to the beginning of development of sperm in boys' testicles at puberty.
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Kanji
精 セイ refined, ghost, fairy 通 ツウ traffic, pass through, avenue
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