What does "dream up" mean?

To invent something imaginative To create an idea or plan, often fantastical.

How do you use "dream up" in a sentence?

Who dreamed up this scheme? She dreams up the wildest stories. They dreamed up a new concept.

Phrasal Verb BritishAmericanAustralian ★★★★☆ Common Casual

Meaning: To invent something imaginative

想象或发明创意性的东西

Imaginar o inventar algo creativo

（創造的なことを）思いつく、考え出す

(창의적인 것을) 생각해 내다, 착상하다

To create an idea or plan, often fantastical.

常暗示某些异想天开或不切实际的东西。

A menudo implica algo fantasioso o descabellado.

空想的なものや突拍子もないものを示唆することが多い。

종종 환상적인 아이디어나 계획을 만들어 내다.

Base verb: dream

Particle: up

Separable: Yes — the object can go between the verb and particle

Who dreamed up this scheme?
谁想出这个主意的？
¿Quién se inventó esta idea?
誰がこのアイデアを考え出したの？
누가 이 계획을 생각해 냈어?
She dreams up the wildest stories.
她总是在想新点子
Siempre está ideando nuevos planes
彼女はいつも新しい計画を思いついている
그녀는 가장 기발한 이야기를 만들어 낸다.
They dreamed up a new concept.
他这次又编了什么借口？
¿Qué excusa se ha inventado ahora?
彼は今度は何の言い訳を思いついたんだ？
그들은 새로운 컨셉을 고안해 냈다.

Context: imagination, invention

Tone: creative

From ideas coming as if in a dream.

Era: Modern

Generation: All ages

Social background: Universal