16. Burn, scorch, sear, singe refer to the effect of fire or heat. To burn is to consume, wholly or in part, by contact with fire or excessive heat: to burn leaves. Scorch implies superficial or slight burning, resulting in a change of color or in injury to the texture because of shriveling or curling: to scorch a dress while ironing. Sear refers especially to the drying or hardening caused by heat: to sear a roast of meat. Singe applies especially to a superficial burning that takes off ends or projections: to singe hair; singe the pinfeathers from a chicken.

Did you mean burn the candle at both ends?