[bi.month.ly] adj (1846) 1: occurring every two months
2: occurring twice a month: semimonthly usage see bi-
[2]bimonthly adv (1864) 1: once every two months
2: twice a month [3]bimonthly n (ca. 1890): a bimonthly publication
[bi.month.ly] adj (1846) 1: occurring every two months
2: occurring twice a month: semimonthly usage see bi-
[2]bimonthly adv (1864) 1: once every two months
2: twice a month [3]bimonthly n (ca. 1890): a bimonthly publication
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012