heighten

(verb) become more extreme. Synonyms: rise. Example: "The tension heightened."

(verb) make more extreme; raise in quantity, degree, or intensity. Example: "Heightened interest."

(verb) increase. Synonyms: enhance, raise. Examples: "This will enhance your enjoyment." "Heighten the tension."

(verb) increase the height of. Example: "The athletes kept jumping over the steadily heightened bars."

(verb) make (one's senses) more acute. Synonyms: sharpen. Example: "This drug will sharpen your vision."

(verb) make more intense, stronger, or more marked. Synonyms: intensify, compound, deepen. Examples: "The efforts were intensified", "her rudeness intensified his dislike for her." "Pot smokers claim it heightens their awareness." "This event only deepened my convictions."