“Being well acquainted” in Japanese
Short answer
Being well acquainted in Japanese is “精通” (seitsuu). Full meaning: 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.
Other ways to say “Being well acquainted” in Japanese
知悉
chishitsu having a complete knowledge (of), knowing everything (about), knowing thoroughly, being well acquainted (with)
知執
chishitsu having a complete knowledge (of), knowing everything (about), knowing thoroughly, being well acquainted (with)
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