moment

moment, minute, instant

这些名词均含“瞬间、片刻”之意。
moment: 较minute所表示的时间短，指一刹那或一段很短时间，有时也含持续的意味。
minute: 指极短的时间，但可觉察到时间的持续。
instant: 常与moment换用，指一瞬间，但更侧重时间短促，多用于表示紧迫、瞬变等情况。

名词 moment:

1. a particular point in time
   同义词：minute, second, instant
2. an indefinitely short time
   同义词：minute, second, bit
3. at this time
   同义词：here and now, present moment
4. having important effects or influence
   同义词：consequence, import
5. a turning force produced by an object acting at a distance (or a measure of that force)
6. the n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value

1. My job is not a very glamorous one but it does have its moments.
   我的工作虽不算十分吸引人，但也自有其乐趣所在。
2. I'll be back in a moment.
   我一会儿就回来。
3. I'd like to speak to you for a moment.
   我想和你谈一会儿。

mo.ment

n.（名词）
A brief, indefinite interval of time.
瞬间：一个短暂的、不确定的时间间隔
A specific point in time, especially the present time:
目前，现在：特定的时刻，尤指目前：
例句：
He is not here at the moment.
他现在不在这

A particular period of importance, influence, or significance in a series of events or developments:
关键的时刻；时机：对一系列事件和发展有重要影响或意义重大的某一特定时期：
例句：
a great moment in history; waiting for her big moment.
历史上伟大的时机；她等待着关键时刻的来临

Outstanding significance or value; importance:
重大的意义或价值；重要性：
例句：
a discovery of great moment.
重大的发现

A brief period of time that is characterized by a quality, such as excellence, suitability, or distinction:
特殊价值的时刻：具有某一特性如卓越性、适合性或独特性的短暂的一段时间：
例句：
a lackluster performance that nevertheless had its moments.
平淡的表演仍具有其价值

Philosophy
【哲学】
An essential or constituent element, as of a complex idea.
环节：一种根本的或组成的成分，如一种复杂思想的
A phase or an aspect of a logically developing process.
契机：一个按逻辑发展过程的阶段或方面
Abbr. MPhysics
缩写 M【物理学】
The product of a quantity and its perpendicular distance from a reference point.
力矩：一个量和从参照点到它垂直距离的乘积
The tendency to cause rotation about a point or an axis.
旋转轴：使绕点或轴旋转的倾向
Statistics The expected value of a positive integral power of a random variable. The first moment is the mean of the distribution.
【统计学】 矩，动差：任意变量的正整数功效的期望值。第一个矩是分配的平均数

来源：
Middle English
中古英语
from Old French
源自 古法语
from Latin mômentum
源自 拉丁语 mômentum
from *movimentum
源自 *movimentum
from movôre [to move] * see meu…-
源自 movôre [移动] *参见 meu…-

<参考词汇><同义词>moment,instant,minute,second,jiffy,flashThese nouns denote a brief interval of time.Amoment is an indeterminately short but not insignificant period:
这些名词意思是短暂的时间间隔。Moment 是指不确定地短暂而不是非常短暂的一段时间：
例句：
I`ll be with you in a moment.
我过会儿就和你在一起。

例句：
It took him a moment to answer.
他很快就回答上了。

Instant is a period of time almost too brief to detect;it implies haste and often urgency:
Instant 指一段极短时间，以至让人难以察觉；它暗指匆忙，并常指紧急情况：
例句：
She hesitated for just an instant.
她只踌躇了片刻。

例句：
Stop it this instant.
马上停下来。

Minute andsecond, used strictly, refer to measured intervals of time;often, though,minute is interchangeable with moment (
Minute 和second 严格地用， 是指测得的时间间隔；但是通常minute 和 moment 可以互换（
例句：
Wait a minute.
等一会儿。

例句：
The plane will be arriving in a minute), andsecond with instant (
飞机再过一会儿就要到达了)， 而且second 可以和 instant 互换(

例句：
I slipped out of the room for a few seconds to turn the oven on).
我溜出房间一会儿去打开炉子)。

Jiffy andflash occur principally in combinations preceded by in a; in a jiffy means in a short space of time,whilein a flash suggests the almost imperceptible duration of a flash of light:
Jiffy 和flash 主要出现在前面有 in a；in a jiffy 的组合词里， 用来指短暂的时间，而in a flash 指一闪或一亮的、几乎难以察觉到的时间持续：
例句：
.He was on his stool in a jiffy, driving away with his pen. (Charles Dickens).
.眨眼间他坐到了凳子上，用他的钢笔奋力工作. （查尔斯·狄更斯）。

例句：
She was on her feet in a flash when the doorbell rang. See also Synonyms at importance
门铃一响，她就立刻站了起来 参见同义词 importance