transitive verb
to cause to begin burning; set on fire; kindle.
He ignited the charcoal with his lighter.
to subject to intense heat; cause to glow with heat.
The fire in the building ignited the metal roof.
to stir up the emotions of; excite.
The electrifying speech ignited the crowd.
to cause to begin or emerge suddenly.
This absurd accusation ignited her anger.
The new research findings ignited a controversy.
This book ignited in him a lifelong interest in plants.
intransitive verb
to begin to burn; catch fire; glow with heat.