1. [adj]  destroyed or badly damaged by fire; "a row of burned houses"; "a charred bit of burnt wood"; "barricaded the street with burnt-out cars"
2. [adj]  inoperative as a result of heat or friction; "a burned-out picture tube"
3. [adj]  exhausted as a result of long-time stress; "she was burned-out before she was 30"

BURNED-OUT is a 10 letter word that starts with B.