Also found in: Thesaurus.
v. height·ened, height·en·ing, height·ens
1. To raise or increase the quantity or degree of; intensify.
2. To make high or higher; raise.
1. To rise or increase in quantity or degree; intensify.
2. To become high or higher; rise.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.