Billow

Bil·low

Billow

n.
  1. A great wave or surge of the sea or other water, caused usually by violent wind.
    Whom the winds waft where'er the billows roll.
  2. A great wave or flood of anything.

Billow

v. i.

imp. & p. p. Billowed; p. pr. & vb. n. Billowing

  1. To surge; to rise and roll in waves or surges; to undulate.