Third-person singular simple present indicative form of burn down.
Burns-down Sentence Examples
Smoking - Do n't leave a cigarette smoldering in an ashtray - it can tip out as it burns down.
Each round has a specific number of balls players must clear off the board before the fuse on the dynamite at the bottom of the screen burns down.
During the series, Angelica frames Mari-Mar for theft and sends her to prison, burns down her grandparents hut (with the grandparents in it) and forges a letter to Mari-Mar from Sergio to claim he never loved her.