Adjective biyearly has 2 senses
  1. biennial, biyearly - occurring every second year; "they met at biennial conventions"
  2. semiannual, biannual, biyearly - occurring or payable twice each year
,Adverbial biyearly has 2 senses
  1. biennially, biyearly - every two years; "this festival takes places biennially"
  2. semiannually, biyearly - twice a year
,
TOP