Dictionary.com
Thesaurus.com
Synonyms

lighten

1 American  
[lahyt-n] / ˈlaɪt n /

verb (used without object)

  1. to become lighter or less dark; brighten.

    The sky lightened after the storm.

  2. to brighten or light up, as the eyes or features.

    Her face lightened when she heard the good news.

  3. to flash as or like lightning (often used impersonally with it as subject).

    It thundered and lightened for hours.

  4. Archaic.  to shine, gleam, or be bright.

    steel blades lightening in the sun.


verb (used with object)

  1. to give light to; illuminate.

    A full moon lightened the road.

  2. to brighten (the eyes, features, etc.).

    A large smile lightened his face.

  3. to make lighter or less dark.

    Add white to lighten the paint.

  4. Obsolete.  enlighten.

  5. Obsolete.  to flash or emit like lightning (usually followed by out, forth, ordown ).

    eyes that lightened forth implacable hatred.

lighten 2 American  
[lahyt-n] / ˈlaɪt n /

verb (used with object)

  1. to make lighter in weight.

    to lighten the load on a truck.

  2. to lessen the load of or upon.

    to lighten a cargo ship.

  3. to make less burdensome or oppressive; alleviate; mitigate.

    to lighten taxes;

    to lighten someone's cares.

    Synonyms:
    reduce , lessen , ease
    Antonyms:
    aggravate
  4. to cheer or gladden.

    Such news lightens my heart.


verb (used without object)

  1. to become less severe, stringent, or harsh; ease up.

    Border inspections have lightened recently.

  2. to become less heavy, cumbersome, burdensome, oppressive, etc..

    His worries seem to have lightened somewhat.

  3. to become less gloomy; perk up.

    People's spirits usually lighten when spring arrives.

lighten 1 British  
/ ˈlaɪtən /

verb

  1. to become or make light

  2. (intr) to shine; glow

  3. (intr) (of lightning) to flash

  4. (tr) an archaic word for enlighten

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

lighten 2 British  
/ ˈlaɪtən /

verb

  1. 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 & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • lightener noun

Etymology

Origin of lighten1

First recorded in 1300–50; Middle English lightnen; light 1, -en 1

Origin of lighten2

First recorded in 1350–1400; Middle English lightnen; light 2, -en 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Starmer is also expected to announce measures to lighten regulations on business.

From Barron's

He told family members that Diet Coke was responsible for his longevity, lightening the mood.

From The Wall Street Journal

Lawmakers crafted the deduction to lighten the tax burden of seniors with fixed incomes and higher medical costs, said Michael Levy, a partner at accounting firm Crowe’s tax group.

From MarketWatch

We were heartened to find that this mail-order boom is providing a proliferation of excellent options just as time-stressed home cooks are looking to lighten the holiday-hosting load, or outsource it entirely.

From The Wall Street Journal

During this time, the part-time indie author was writing a novel with dark psychological themes so to lighten the mood, he started making War & Peace irreverent and funny.

From BBC