名詞 clown:

1. a rude or vulgar fool
   同義詞：buffoon
2. a person who amuses others by ridiculous behavior
   同義詞：buffoon, merry andrew

動詞 clown:

1. act as or like a clown
   同義詞：clown around, antic

1. I just curled up when I saw her dressed as a clown.
   我見她打扮得像個小丑，把我笑得直不起腰來。
2. It's a picture depicting him as a clown.
   這是一幅把他畫成小丑的畫。
3. The clown's performance made people laugh.
   小丑的表演把人們逗笑了。

clown

n.（名詞）

A buffoon or jester who entertains by jokes, antics, and tricks in a circus, play, or other presentation.
小丑，丑角：在馬戲、戲劇或其它演出中通過玩笑、滑稽動作及騙局娛樂的小丑
One who jokes and plays tricks.
愛開玩笑和惡作劇的人
A coarse, rude, vulgar person; a boor.
粗人：粗心、魯莽、庸俗的人；粗人
A peasant; a rustic.
農(nóng)民；鄉(xiāng)巴佬
v.intr.（不及物動詞）
clowned,clown.ing,clowns
To behave like a buffoon or jester.
舉動似小丑
To perform as a buffoon or jester.
扮演小丑

來源：
[Of Scandinavian origin] ; akin to Icelandic klunni [clumsy person]
[源于斯堪的納維亞語] ；類似于 冰島語 klunni [笨手笨腳的人]
or [of Low German origin]
或 [源于低地德語]

【引伸】
clown.ish
adj.（形容詞）
clown.ishly
adv.（副詞）
clown.ishness
n.（名詞）