"intensify" in the verb sense

1. escalate, intensify, step up

increase in extent or intensity

"The Allies escalated the bombing"

2. intensify, compound, heighten, deepen

make more intense, stronger, or more marked

"The efforts were intensified"

"Her rudeness intensified his dislike for her"

"Pot smokers claim it heightens their awareness"

"This event only deepened my convictions"

3. intensify, deepen

become more intense

"The debate intensified"

"His dislike for raw fish only deepened in Japan"

4. intensify

make the chemically affected part of (a negative) denser or more opaque in order produce a stronger contrast between light and dark

Source: WordNet® (An amazing lexical database of English)

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