buyan [búyan] n 1(prim) Moon. buwán (sem. domains: 1.1.1.1 - Moon.) 2Month (as of the amount of time measured by one cycle of the moon). (sem. domains: 8.4.1.4 - Month.) comp. hadag it buyan , comp. patunawey kag buyan , comp. tunaw kag buyan , der. binuyan , der. binuyan-buyan , der. buyan-buyan