Meaning : Increase in extent or intensity.
Example :
The Allies escalated the bombing.
Reduce the level or intensity or size or scope of.
De-escalate a crisis.Meaning : Become more intense.
Example :
The debate intensified.
His dislike for raw fish only deepened in Japan.
Synonyms : deepen
Meaning : Make the chemically affected part of (a negative) denser or more opaque in order produce a stronger contrast between light and dark.