Kalmar “biyearly” sifa ce da take nufin faruwa sau biyu a shekara ko sau ɗaya a kowace shekara biyu. Duk da haka, "biyearly" na iya zama da ban sha'awa domin wani lokaci ana amfani da shi don nufin duka "na faruwa sau biyu a shekara" da kuma "na faruwa sau ɗaya a kowace shekara biyu." Ana ba da shawarar yin amfani da "biannual" sau biyu a shekara da kuma "biennial" sau ɗaya a kowace shekara biyu don guje wa rudani.