Verb
1. become more extreme;
"The tension heightened"2. make more extreme; raise in quantity, degree, or intensity;
"heightened interest"3. increase;
"This will enhance your enjoyment""heighten the tension"4. increase the height of;
"The athletes kept jumping over the steadily heightened bars"5. make (one's senses) more acute;
"This drug will sharpen your vision"6. 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"