This is the 16584th most frequent Russian word.
сгорят
"Сгорят" means "will burn" in English.
Here, "сгорят" is used to mean "will burn down," referring to the destruction caused by fire.
Если не потушить костёр, деревья вокруг сгорят.
If the fire is not extinguished, the trees around will burn down.
In this example, "сгорят" specifies the action of burning completely when exposed to an open flame.
Бумаги сгорят, если их оставить возле свечи.
The papers will burn if left near the candle.
Figuratively, "сгорят" is used to represent the end or destruction of relationships, like burned bridges.