(obsolete) past participle of buy: bought

(obsolete) past participle of bend: bent

(obsolete) past participle of baptize: baptized

Initialism of yttrium, barium, copper, oxygen: component elements used in the manufacture of one type of high-temperature superconducting material.

(finance) Initialism of I'll be gone, you'll be gone (I'll have gotten my commission; you'll have sold out to the next guy; neither of us will be held accountable).

(obsolete) past participle of bind

(obsolete) Bound.

past participle of bury

past participle of break

(obsolete) past participle of burn