Bwhwman, n. a fluctuation; v. to waver
Bwlan, n. a straw vessel to hold corn; a budget
Bwlch, n. a gap, a defile; a. broken, notched
Bwmp, n. hollow sound; Aderyn y bwn, a bittern
Bwn, n. a spear head
Bwng, n. an orifice, a bung
Bwrdais, n. a burges
Bwrdeisdref, n. a borough town
Bwrdd, n. a table; a board
Bwriad, n. a casting, a design