order  n.1.次序,顺序  2.定购,定货  3.治安,秩序  4.命令,嘱咐  5.整齐,有条理
         6.订购，定单，定货 7.付款指令，付款说明
       vt.1.命令,嘱咐  2.定购,定做,叫(菜饭等)

order form 订单，订货单
order quantity 订货数量
mail order company 邮购公司
place an order 下订单

与ord,ordin有关的英文单词≈line;row;series(线条；行列，排列；系列，顺序)

order→很好的排列→ n.5.整齐,有条理,付钱的顺序→ 7.付款指令，付款说明 vt. 指定做某事的顺序→ 1.命令,嘱咐  规定做某事的顺序→ 2.定购,定做,叫(菜饭等)

The items are listed in order of importance.  这些项目是根据其重要性排列的。

词形变化
名词: orderer 动词过去式: ordered
动词过去分词: ordered 动词现在分词: ordering
动词第三人称单数: orders

词源解说
13世纪早期进入英语，直接源自古法语的ordre；最初源自拉丁语的ordinem，意为序列。

语法用法
1、order作名词：在有些词组中前面不加冠词a/an/the，如in alphabetical order，in order of arrival，by order（奉命）等；
2、order作名词，在有些句子中要用复数形式orders。
They received orders to start at once.
The soldiers have orders not to let anybody come past.
He is under orders to leave for Moscow next Monday.
3、order作名词或动词指“命令”时，语气较重，不能用在家人间。
He ordered his son to buy a newspaper for him.
这种表达方式是错误的
4、order作动词或名词指“命令”时，后面可跟that从句，从句中用虚拟现在式。
He orders that the work (should) be started at once.
5、order作动词，后可跟宾语和不定式，不可直接跟不定式。
He ordered them to start the work at once.
6、order作名词指“订单”时，后面跟介词for。
We have sent an order for a hundred copies of the book.
我们下订单订了一百份这本书。
7、order作名词指“订单”时，可跟动词execute或fill（美语中常用）表示“按照订单交货”。
Your order for a hundred copies of the book has been executed/filled already.
8、order后可跟双宾语.
My mother has ordered me a new suit.
9、作名词时，order后还可跟for和款项表示订单金额。例：money/postal/post-office order for ￥200； in order to比单用to更加正式且语气重，口语中很少用in order to。正式程度从大到小：in order to，so as to，to。表目的还可以跟从句in order that；
10、in order在不同语境中有多重含义。
Everything is in order.一切正常有序。
The typewriter is in order.这台打字机工作正常。
A fresh discussion of the question is now in order.现在正适合重新讨论这问题。

错句举例与错句分析
错句: The soldiers were ordered standing at attention.
订正: The soldiers were ordered to stand at attention.
翻译: 士兵们收到命令立正站好。
分析: order的宾语补足语只能是不定式，不可以是动名词。

词义辨析
command, order, direction, instruction
这些名词均含“命令”之意。
command: 较正式用词，强调权威性、全局性和强制性。
order: 普通用词，侧重指具体的命令。
direction: 正式用词，指口头或书面的指示或命令。内容不一定详尽，语气较缓和，不太强调强制性。也可指指导性的说明。
instruction: 书面用词，指不容违反、不容推翻的命令。也多指包含具体说明的指示。
order, bid, command
这些动词均含有“命令”之意。
order: 普通用词，多指上级对下级，主人对仆人以及教师对学生等发出的命令，也指态度专横地命令他人。
bid: 与order同义，但较正式，文学意味强，多指口头直接下的命令。
command: 话意强，指正式下令，强调下令者的权威性，要求必须服从。

英英解释
名词 order:
(often plural) a command given by a superior (e.g., a military or law enforcement officer) that must be obeyed
a degree in a continuum of size or quantity同义词：order of magnitude
established customary state (especially of society)
logical or comprehensible arrangement of separate elements同义词：ordering, ordination
a condition of regular or proper arrangement同义词：orderliness
a legally binding command or decision entered on the court record (as if issued by a court or judge)同义词：decree, edict, fiat, rescript
a commercial document used to request someone to supply something in return for payment and providing specifications and quantities同义词：purchase order
a formal association of people with similar interests同义词：club, social club, society, guild, gild, lodge
a body of rules followed by an assembly同义词：rules of order, parliamentary law, parliamentary procedure
(usually plural) the status or rank or office of a Christian clergyman in an ecclesiastical hierarchy同义词：Holy Order
a group of person living under a religious rule同义词：monastic order
(biology) taxonomic group containing one or more families
a request for food or refreshment (as served in a restaurant or bar etc.)
(architecture) one of original three styles of Greek architecture distinguished by the type of column and entablature used or a style developed from the original three by the Romans
the act of putting things in a sequential arrangement同义词：ordering
动词 order:
give instructions to or direct somebody to do something with authority同义词：tell, enjoin, say
make a request for something
issue commands or orders for同义词：prescribe, dictate
bring into conformity with rules or principles or usage; impose regulations同义词：regulate, regularize, regularise, govern
bring order to or into
place in a certain order
appoint to a clerical posts同义词：ordain, consecrate, ordinate
arrange thoughts, ideas, temporal events同义词：arrange, set up, put
assign a rank or rating to同义词：rate, rank, range, grade, place