Combustible

Part of speech: noun (n.)

A substance that may bee set on fire, or which is liable to take fire and burn. All such combustibles as are cheap enough for common use go under the name of fuel. Ure.

Part of speech: adjective (a.)

1. Capable of taking fire and burning; apt to catch fire; inflammable. Sin is to the soul like fire to combustible matter. South.

2. Ea Arnold was a combustible character. W. Irving.