intensify, compound, heighten, deepen

make more intense, stronger, or more marked; "The efforts were intensified", "Her rudeness intensified his dislike for her"; "Potsmokers claim it heightens their awareness"; "This event only deepened my convictions"

• heat up, hot up, screw up — make more intense
• fan — make fiercer; as of emotions
• enhance, heighten, raise — increase
• amplify — increase the volume of
• sharpen — make sharp or sharper
• sharpen, heighten — make more acute; as of one's senses

• increase — become bigger or greater in amount

• intensify, deepen — become more intense