1. burns or catches fire
Usage: third person singular present tense of ‘combust’
2. becomes very angry suddenly
Usage: informal

Examples

• The dry wood combusts easily in the fireplace.
• Paper combusts at 451 degrees Fahrenheit.
• The gasoline vapor combusts when exposed to a spark.
• She combusts whenever someone mentions politics.
• The old building combusts within minutes of the fire starting.
• He combusts at the slightest criticism of his work.