What is the meaning of intensify?

verb

• Increase in extent or intensity.
  • usage: "The Allies escalated the bombing"
  • synonyms: escalate, step up
• Make more intense, stronger, or more marked.
  • usage: "The efforts were intensified, "Her rudeness intensified his dislike for her"; "Pot smokers claim it heightens their awareness"; "This event only deepened my convictions"
  • synonyms: compound, heighten, deepen
• Become more intense.
  • usage: "The debate intensified"; "His dislike for raw fish only deepened in Japan"
  • synonyms: deepen
• Make the chemically affected part of (a negative) denser or more opaque in order produce a stronger contrast between light and dark. .