HEIGHTEN, verb transitive hitn. To raise higher; but not often used in this literal sense.
1. To advance in progress towards a better state; to improve; to meliorate; to increase in excellence or good qualities; as, to highten virtue; to highten the beauties of description, or of poetry.
2. To aggravate; to advance towards a worse state; to augment in violence.
3. To increase; as, to highten our relish for intellectual pleasure.