light·en 1
(līt′n)v. light·ened, light·en·ing, light·ens
v.tr.1. a. To make light or lighter; illuminate or brighten.
b. To make (a color) lighter.
2. Archaic To enlighten.
v.intr.1. To become lighter; brighten.
2. To be luminous; shine.
3. To give off flashes of lightning.
light·en 2
(līt′n)v. light·ened, light·en·ing, light·ens
v.tr.1. To make less heavy: I lightened my backpack by removing a large textbook.
2. To lessen the severity or oppressiveness of:
lighten the workload. See Synonyms at
relieve.
3. To make less worried or more cheerful: lighten the mood.
v.intr.1. To become less in weight.
2. To become less oppressive, troublesome, or severe.
3. To become cheerful: The mood lightened when the party started.
Phrasal Verb: lighten up Informal To take matters less seriously: Everything will work out fine, so stop worrying and lighten up.
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.
lighten
(ˈlaɪtən) vb1. to become or make light
2. (intr) to shine; glow
3. (intr) (of lightning) to flash
lighten
(ˈlaɪtən) vb1. to make or become less heavy
2. to make or become less burdensome or oppressive; mitigate
3. to make or become more cheerful or lively
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
light•en1
(ˈlaɪt n)
v.i. 1. to become lighter or less dark; brighten.
2. to brighten or light up, as the eyes or features.
3. to flash as or like lightning.
4. Archaic. to shine, gleam, or be bright.
v.t. 5. to give light to; illuminate.
6. to brighten (the eyes, etc.).
7. to make lighter or less dark.
8. Obs. to flash or emit like lightning.
[1300–50; Middle English; see
light1,
-en1]
light′en•er, n.
light•en2
(ˈlaɪt n)
v. -ened, -en•ing. v.t. 1. to make lighter in weight.
2. to lessen the load of or upon.
3. to make less burdensome or oppressive; mitigate: to lighten taxes.
4. to cheer or gladden: Such news lightens my heart.
v.i. 5. to become less severe, stringent, or harsh; ease up.
6. to become less heavy, burdensome, or oppressive.
7. to become less gloomy; perk up.
8. lighten up, to become less serious or earnest.
[1350–1400; Middle English; see
light2,
-en1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.