tr. & intr.v., -ened, -en·ing, -ens.

To make or become bright or brighter.

brightener bright'en·er n.

verb

1. To become brighter or fairer: clear (up), lighten. See clear/unclear.
2. To make lively or animated: animate, enliven, light. See happy/unhappy.

v

Definition: make happy, feel better
Antonyms: depress, upset

v

Definition: make shine or glow
Antonyms: darken, deepen, dull, fade

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Note: click on a word meaning below to see its connections and related words.

The verb has 4 meanings:

Meaning #1: make lighter or brighter
  Synonyms: lighten up, lighten
  Antonym: darken (meaning #4)

Meaning #2: become clear
  Synonyms: clear up, clear, light up

Meaning #3: become brighter
  Antonym: darken (meaning #2)

Meaning #4: become brighter
  Synonym: lighten
  Antonym: darken (meaning #1)

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Dansk (Danish)
v. tr. - gøre lysere, få til at skinne
v. intr. - blive lysere

idioms:

• brighten up    klare op, live op
• brightened up    lyse op, blive oplivet

Nederlands (Dutch)
licht maken

Français (French)
v. tr. - égayer, animer, améliorer, faire briller, faire reluire, aviver
v. intr. - s'éclaircir, se dégager, s'allumer, s'améliorer, se présenter sous un meilleur jour

idioms:

• brighten up    s'éclaircir, se dégager, illuminer, égayer, se présenter sous un meilleur jour

Deutsch (German)
v. - aufheitern, aufmuntern, sich aufhellen, vergnügter werden

idioms:

• brighten up    sich aufheitern, aufmuntern

Ελληνική (Greek)
v. - λαμπρύνω, φωτίζω, φαιδρύνω, ζωντανεύω

idioms:

• brighten up    ανακτώ το κέφι ή την αισιοδοξία μου, αιθριάζω
• brightened up    ζωηρός, κεφάτος

Italiano (Italian)
rallegrare, schiarirsi

idioms:

• brighten up    rasserenarsi, rallegrare

Português (Portuguese)
v. - iluminar

idioms:

• brighten up    iluminar
• brightened up    animado

Русский (Russian)
подбадривать, проясняться (о небе)

idioms:

• brighten up    проясняться, подбадривать
• brightened up    приободренный

Español (Spanish)
v. tr. - animar, aclarar, escampar
v. intr. - despejarse, animarse, aclararse

idioms:

• brighten up    despejarse, aclararse, hacer más alegre, animar

Svenska (Swedish)
v. - göra ljusare, muntra upp

中文（简体） (Chinese (Simplified))
使明亮, 使快乐高兴, 使开颜, 使闪亮, 使生辉, 使活跃, 明亮, 变明亮, 快乐高兴, 开颜, 闪亮, 生辉, 活跃

idioms:

• brighten up    发亮
• brightened up    使活跃, 使高兴

中文（繁體） (Chinese (Traditional))
v. tr. - 使明亮, 使快樂高興, 使開顏, 使閃亮, 使生輝, 使活躍
v. intr. - 明亮, 變明亮, 快樂高興, 開顏, 閃亮, 生輝, 活躍

idioms:

• brighten up    發亮
• brightened up    使活躍, 使高興

한국어 (Korean)
v. tr. - ~을 빛나게 하다, 즐겁게 하다, ~을 유망하게 하다
v. intr. - 빛나다, 명랑해지다

idioms:

• brighten up    명랑해지다

日本語 (Japanese)
v. - 明るくする, 明るくなる, 輝かせる, 晴れ晴れとさせる, 快活にする, 磨く, 晴れやかになる

idioms:

• brighten up    陽気になる, 明るくなる
• brightened up    元気になる

العربيه (Arabic)
‏(فعل) أضاء, أنار, أبهج, أشرق‏

עברית (Hebrew)
v. tr. - ‮הבהיר, האיר‬
v. intr. - ‮התבהר‬

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brighten jewelry