simple past tense and past participle of heighten

increased in intensity or concentration; elevated, stepped-up

That which heightens.

plural of heightener

To make high; to raise higher; to elevate. / To advance, increase, augment, make larger, more intense, stronger etc.

plural of heightening

present participle of heighten

The act by which something is heightened or increased.

Third-person singular simple present indicative form of heighten