名詞 powder:

1. a solid substance in the form of tiny loose particles; a solid that has been pulverized
   同義詞：pulverization, pulverisation
2. a mixture of potassium nitrate, charcoal, and sulfur in a 75:15:10 ratio which is used in gunnery, time fuses, and fireworks
   同義詞：gunpowder
3. any of various cosmetic or medical preparations dispensed in the form of a pulverized powder

動詞 powder:

1. apply powder to
2. make into a powder by breaking up or cause to become dust
   同義詞：powderize, powderise, pulverize, pulverise

1. How well do you think this washing powder stacks up against your usual brand?
   這種洗衣粉跟你常用的那種比怎麼樣?
2. Agitate the mixture to dissolve the powder.
   攪動混合物而使粉末溶化。
3. They mix the bran and corn powder together to feed the pigs.
   他們把麥麩和玉米粉混合起來喂豬。
4. Borax is a kind of white powder.
   硼砂是一種白色粉末。
5. He took a powder every morning.
   他每天服用藥粉。
6. I know the smell of powder.
   我上過戰(zhàn)場。

pow.der

n.（名詞）
A substance consisting of ground, pulverized, or otherwise finely dispersed solid particles.
粉末：由磨粉、研碎或均勻分布的固體顆粒組成的物質
Any of various preparations in the form of powder, as certain cosmetics and medicines.
散劑：各種以粉末形式存在的配制品，如某些化妝品及藥品
An explosive mixture, such as gunpowder.
火藥：易爆炸的混合物，如彈藥
Light, dry snow.
細雪：干而輕的雪片
v.（動詞）
pow.dered,pow.der.ing,pow.ders
v.tr.（及物動詞）
To reduce to powder; pulverize.
把…磨成粉：使變成粉末；研碎成粉
To dust or cover with or as if with powder.
撒粉于：撒以粉，覆蓋著粉末
Slang To defeat handily or decisively.
【俚語】 重擊：毫不費力地或決定性地擊敗
v.intr.（不及物動詞）
To become pulverized; turn into powder.
被研碎；變成粉末
To use powder as a cosmetic.
搽粉，撲粉：用粉作化妝品

<習慣用語>keep (one`s) powder dry
To be ready for a challenge with little warning.
準備萬一：準備接受事先沒有什么警告的挑戰(zhàn)
take a powder
To make a quick departure; run away.
迅速離開；逃之夭夭
來源：
Middle English poudre
中古英語 poudre
from Old French
源自 古法語
from Latin pulvis pulver-
源自 拉丁語 pulvis pulver-

【引伸】
pow.derer
n.（名詞）