名詞 jar:

1. a vessel (usually cylindrical) with a wide mouth and without handles
2. the quantity contained in a jar
   同義詞：jarful
3. a sudden impact
   同義詞：jolt, jounce

動詞 jar:

1. be incompatible; be or come into conflict
   同義詞：clash, collide
2. move or cause to move with a sudden jerky motion
   同義詞：jolt
3. shock physically
   同義詞：shake up, bump around
4. affect in a disagreeable way
5. place in a cylindrical vessel

1. I keep my paint-brushes in old jam jars.
   我把畫筆存放在舊果醬瓶里。
2. He jarred his back badly when he fell.
   他這一跌，背部　得很重。
3. He gave his back a nasty jar when he fell.
   他這一跌，背部　得很厲害。
4. The iron gate jarred when he opened it.
   他開門時，鐵門發(fā)出刺耳的嘎嘎聲。
5. Their opinion jarred with ours.
   他們的意見與我們不一致。
6. How much is a jar of peanut butter?
   一瓶花生醬多少錢？

jar

n.（名詞）
A cylindrical glass or earthenware vessel with a wide mouth and usually no handles.
廣口壇子：一個圓柱體的玻璃或陶瓷的廣口且通常無柄的容器
The amount that a jar can hold.
一罐：一個罐子能裝的容量
Chiefly British A glass of beer.
【多用于英國】 一杯啤酒
v.tr.（及物動詞）
jarred,jar.ring,jars
To put into a jar.
把…倒進(jìn)罐子

來源：
Middle English jarre [a liquid measure]
中古英語 jarre [一種液體測量]
from Old French from Provenôal jarra
源自 古法語 源自 普羅旺斯語 jarra
and from Medieval Latin jarra
并源自 中世紀(jì)拉丁語 jarra
both from Arabic jarrah [earthen jar]
都源自 阿拉伯語 jarrah [陶制的罐子]

【引伸】
jar.ful.
n.（名詞）

---------------另--------------
jar
jar 2

v.（動詞）
jarred,jar.ring,jars
v.intr.（不及物動詞）
To make or utter a harsh sound.
做出或發(fā)出刺耳的聲音
To be disturbing or irritating; grate:
擾亂：使惱怒或不安；折磨：
例句：
The incessant talking jarred on my nerves.
喋喋不休的談話使我感到煩躁不安

To shake or shiver from impact.
搖動：因外來力量而搖晃或顫抖
To clash or conflict:
抵觸，沖突：
例句：
.We ourselves . . . often jar with the landscape.(Isak Dinesen)
.我們…經(jīng)常與周圍的景致沖突.(伊薩克·迪內(nèi)森)

v.tr.（及物動詞）
To bump or cause to move or shake from impact.
震動：由外來力量導(dǎo)致或產(chǎn)生運(yùn)動或搖晃
To startle or unsettle; shock.
使…震撼：使…吃驚或騷亂；使…震顫
n.（名詞）
A jolt; a shock.See Synonyms at collision
顛簸；震驚參見 collision
Harsh or grating sound; discord.
刺耳的聲音：刺耳的碰撞聲或摩擦聲；不和諧

來源：
[Perhaps of imitative origin]
[可能源于擬聲]

【引伸】
jar.ringly
adv.（副詞）