(亦作e)
(pl. Es 或E's)
1
- the fifth letter of the alphabet英语字母表中第五个字母。
1.1
- denoting the fifth in a set of items, categories, sizes, etc.（项目、种类或尺码等的）第五。
1.2
- the fifth-highest class of academic mark（学业成绩的）E等（由高到低的第五个级别）。
1.3
e
Chess denoting the fifth file from the left, as viewed from White's side of the board【棋】（从执白方左边数起的）第五纵列。
1.4
- denoting the lowest-earning socioeconomic category for marketing purposes（为市场营销而划分的社会经济类别中的）最低收入阶层。
2
E
a shape like that of a capital E.E字形：in combination an E-shaped stately home.一座外形似字母E的宏伟房子。
3
- （一般作E）Music the third note of the diatonic scale of C major【乐】E音, Ε调（C大调音阶的第三音）。
3.1
- a key based on a scale with E as its keynote.E音键。
1.1
- East or Eastern.同East或Eastern:
139°E.
东139°.
1.2
- informal the drug Ecstasy or a tablet of Ecstasy〈非正式〉摇头丸。
1.3
- in combination denoting products, in particular food additives, which comply with EU regulations（产品, 尤指食品添加剂）符合欧盟规定的产品：
the yellow colouring tartrazine (E 102).
黄色色素的酒石黄(E 102)。参见E-NUMBER.
1.4
- in combination(in units of measurement) exa- (1018).（度量单位中）同EXA(1018)。
1.5
- Spain (international vehicle registration).同SPAIN （国际车辆注册用语）。
- ORIGIN: from Spanish España.
1
- Physics【物理】
1.1
- electric field strength电场强度。
1.2
- electromotive force电动势。
1.3
- energy能, 能量：
E = mc2.
能量等于质量乘以光速的平方。
短语
the three Es
- economy, efficiency, and effectiveness三"E"（即： 经济, 效率, 效益）。