lighten up

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light·en 1

v. light·ened, light·en·ing, light·ens
a. To make light or lighter; illuminate or brighten.
b. To make (a color) lighter.
2. Archaic To enlighten.
1. To become lighter; brighten.
2. To be luminous; shine.
3. To give off flashes of lightning.

light·en 2

v. light·ened, light·en·ing, light·ens
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.
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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.lighten up - make more cheerful; "the conversation lightened me up a bit"
cheer - show approval or good wishes by shouting; "everybody cheered the birthday boy"
2.lighten up - become more cheerful; "after a glass of wine, he lightened up a bit"
chirk up, cheer up, cheer - become cheerful
3.lighten up - make lighter or brighter; "The paint will brighten the room"
alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"
4.lighten up - become lighter; "The room lightened up"
change - undergo a change; become different in essence; losing one's or its original nature; "She changed completely as she grew older"; "The weather changed last night"
irradiate - cast rays of light upon
illume, illuminate, illumine, light, light up - make lighter or brighter; "This lamp lightens the room a bit"

w>lighten up

vi (inf)die Dinge leichter nehmen; lighten up!nimms leicht!
References in classic literature ?
Once a week the German daily of the highest class lightens up its heavy columns--that is, it thinks it lightens them up--with a profound, an abysmal, book criticism; a criticism which carries you down, down, down into the scientific bowels of the subject--for the German critic is nothing if not scientific--and when you come up at last and scent the fresh air and see the bonny daylight once more, you resolve without a dissenting voice that a book criticism is a mistaken way to lighten up a German daily.
In his foreword to the book, Charles states: "The tragedy, of course, is that these brilliantly funny men are no longer with us to lighten up our lives.
Haye needs to lighten up the heavyweight division and he can become its saviour by fighting and beating the best.
Lighten Up Yoga & Healing Arts Center, 60 Biltmore Ave, Asheville.