heighten (
http://definr.com/heighten)
v 1: become more extreme; "The tension heightened" [syn:
rise]
2: make more extreme; raise in quantity, degree, or intensity;
"heightened interest"
3: increase; "This will enhance your enjoyment"; "heighten the
tension" [syn:
enhance,
raise]
4: increase the height of
5: make more acute; as of one's senses; "This drug will sharpen
your vision" [syn:
sharpen]
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" [syn:
intensify,
compound,
deepen]