heightener
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height·en
(hīt′n)v. height·ened, height·en·ing, height·ens
v.tr.
1. To raise or increase the quantity or degree of; intensify.
2. To make high or higher; raise.
v.intr.
1. To rise or increase in quantity or degree; intensify.
2. To become high or higher; rise.
height′en·er n.
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.