名詞 express:

1. rapid transport of goods
   同義詞：expressage
2. mail that is distributed by a rapid and efficient system
   同義詞：express mail
3. public transport consisting of a fast train or bus that makes only a few scheduled stops
   同義詞：limited

動詞 express:

1. give expression to
   同義詞：show, evince
2. articulate; either verbally or with a cry, shout, or noise
   同義詞：verbalize, verbalise, utter, give tongue to
3. indicate through a symbol, formula, etc.
   同義詞：state
4. serve as a means for expressing something
   同義詞：carry, convey
5. manifest the effects of (a gene or genetic trait)
6. obtain from a substance, as by mechanical action
   同義詞：press out, extract
7. send by rapid transport or special messenger service

形容詞 express:

1. not tacit or implied
2. without unnecessary stops

副詞 express:

1. by express

1. Learning to express oneself well is an important part of education.
   學會把意思表達清楚是受教育的一個重要方面。
2. She is the express image of her mother.
   她和她母親長得一模一樣。
3. I can't express how grateful I am.
   我說不出我有多么感激。

ex.press

v.tr.（及物動詞）
ex.pressed,ex.press.ing,ex.press.es
To set forth in words; state.
陳述：用語言表達；陳述
To manifest or communicate, as by a gesture; show.See Synonyms at vent
溝通，表示：表示或交流，如用手勢；顯示參見 vent
To make known the feelings or opinions of (oneself), as by statement or art.
表白，表達：表露（自己的）情感或觀點，如通過陳述或技巧
To convey or suggest a representation of; depict:
說明，敘述：表達或表明…的表現(xiàn)；描繪：
例句：
The painting expresses the rage of war victims.
這幅油畫述說了戰(zhàn)爭受害者的憤怒

To represent by a sign or a symbol; symbolize:
表示：用記號或符號來表現(xiàn)；象征：
例句：
express a fraction as a decimal.
用小數(shù)來表示分數(shù)

To squeeze or press out, as juice from an orange.
榨出：榨成或壓出，如橙子中的汁液
To send by special messenger or rapid transport:
快遞：把…作為特殊郵件或快遞郵件寄出：
例句：
express a package to Los Angeles.
快遞包裹到洛杉磯

Genetics
【遺傳學】
To cause (itself) to produce an effect or a phenotype. Used of a gene:
表現(xiàn)顯型：使（自身）產(chǎn)生影響或顯型。用于基因：
例句：
The gene expressed itself under specific environmental conditions.
基因在特殊的環(huán)境會表現(xiàn)顯性

To manifest the effects of (a gene):
顯示（基因的）的影響：
例句：
Half of the people who inherit the gene express it.
半數(shù)有這種遺傳基因的人，皆顯示出其影響

To manifest (a genetic trait):
顯示（基因的特性）：
例句：
All the mice in the study expressed the defect.
所有供研究的老鼠都證明了它們基因的缺陷

adj.Abbr. ex.,exp.（形容詞）縮寫 ex.,exp.
Definitely and explicitly stated:
詳細說明的：確切地和清楚地陳述的：
例句：
their express wish.See Synonyms at explicit
他們的確切愿望參見 explicit

Particular; specific:
明白的；確切的：
例句：
an express plan.
一份特殊計劃

Sent out with or moving at high speed.
快遞的：快速寄出的或移動的
Direct, rapid, and usually nonstop:
直達的：直接的，快速的且常常不停的：
例句：
express delivery of packages; an express bus.
包裹快遞；直達公共汽車

Of, relating to, or appropriate for rapid travel:
快速前進的：快速前進的，與快速前進有關(guān)的，適合于快速前進的：
例句：
express lanes on a freeway.
高速公路上的快行線

adv.（副詞）
By express delivery or transport.
快遞地：通過快速投遞或快速運輸
n.Abbr. ex.,exp.（名詞）縮寫 ex.,exp.

A rapid, efficient system for the delivery of goods and mail.
快遞系統(tǒng)：一種用來投遞貨物和郵件的快速高效的投遞系統(tǒng)
Goods and mail conveyed by such a system.
快件：靠快遞系統(tǒng)來傳送的貨物或郵件
A means of transport, such as a train, that travels rapidly and makes few or no stops before its destination.
直達車，快車：一種運輸工具（如火車），其運行迅速且在到達終點前很少停車或不停車
Chiefly British
【多用于英國】
A special messenger.
專差：特別的信差
A message delivered by special courier.
信息：由特定信使遞送的消息

來源：
Middle English expressen
中古英語 expressen
from Old French expresser
源自 古法語 expresser
from Medieval Latin express3re
源自 中世紀拉丁語 express3re
frequentative of Latin exprimere
拉丁語 exprimere的重復
Latin ex- [ex-]
拉丁語 ex- [前綴，表.…之外.]
Latin premere [to press] * see per- 4
拉丁語 premere [壓榨] *參見 per- 4

【引伸】
express.er
n.（名詞）
express.ible
adj.（形容詞）