D defs.my
Entry 2 senses Webster, 1913

Frequency

/frĕʹkwən-sē/ · Fre·quen·cy · IPA /ˈfɹiːkwənsi/
01 n. The condition of returning frequently; occurrence often repeated; common occurence; as, the frequency of crimes; the frequency of miracles.
pl. Frequencies ((#))
  1. 1.
    The condition of returning frequently; occurrence often repeated; common occurence; as, the frequency of crimes; the frequency of miracles.
    “The reasons that moved her to remove were, because Rome was a place of riot and luxury, her soul being almost stifled with, the frequencies of ladies' visits.” Fuller.
  2. 2.
    A crowd; a throng.[Obs.]