这几个词都有命运的意思，但是用法和含义差别很大：
1.fate n. 命运；命运的安排；天意；定数；天数；命中注定的事(尤指坏事)
多指不好的命运，带有不可避免的意味。不可数名词。
I believe there's some force guiding us ─ call it God, destiny or fate.
我总认为有某种力量在指引着我们——叫它上帝也罢，天意也罢，还是命运也罢。
Fate had thrown them together.
命运使他们聚在一起。
By a strange twist of fate, Andy and I were on the same plane.
由于命运的奇特安排，我和安迪乘坐了同一架飞机。
My fate was bound up with hers
我和她的命运紧密相连。
The fate of the three men is unknown.
这三个人命运未卜。
They suffered the same fate.
他们遭遇了同样的命运。
The Russian Parliament will hold a special session later this month to decide his fate.
俄罗斯议会本月晚些时候将举行特别会议决定他的命运。
Fate was kind to me that day.
那天我很幸运。
The poor people in the area will never accept the fate of slavery.
那个地区的穷人决不会接受被奴役的命运。
She sat outside, waiting to find out her fate.
她坐在外面，等待命运对她作出的安排。
She resigned herself to her fate.
她只好听天由命了。
They held his fate in the palms of their ancient hands.
他们这些老人将他的命运掌握在手心里。
He seems for a moment to be again holding the fate of the country in his hands
他似乎在一瞬间又一次将国家的命运握在了手中。
The government had abandoned the refugees to their fate .
政府抛弃了难民，让他们听天由命。
I see no use quarrelling with fate.
我看不出和命运抗争有什么用。
Took us quite a while to get here, didn't it? Talk about Fate moving in a mysterious way!
我们用了很长时间才走到今天这步，是吧？这就叫命运难测啊！
Fate decreed that she would never reach America.
命中注定她永远到不了美国。
We were fated never to meet again.
我们注定了永远不能再相见。
2.destiny /ˈdestəni/ n. 命运，天意；天命；命运之神；天数；主宰事物的力量
指将来一定会发生在某人身上的事情，尤指无法改变或控制的事。[可数名词] 命运；天命；天数；[不可数名词] 主宰事物的力量；命运之神
the destinies of nations
国家的命运
The need for villagers to control their own destinies has prompted a new plan.
村民们想要掌握自己的命运，这促成了一项新的计划。
Their destinies are intertwined
他们的命运交织在一起。
Marriage comes by destiny.
姻缘命中注定。
He wants to be in control of his own destiny.
他想要掌握自己的命运。
We are masters of our own destiny.
我们是自己命运的主宰者。
She was told that it was her destiny to marry a rich man.
有人告诉她嫁个有钱人是她的命。
It is my destiny one day to be king.
我命中注定有一天要成为国王。
The Prince's destiny was predetermined from the moment of his birth
从出生的那一刻起，王子的命运就已经被预先决定了。
He believes that it is destiny that brings her to this city.
他相信她来到这个城市是天意。
I believe there's some force guiding us─call it God, destiny or fate.
我总认为有某种力量在指引着我们——叫它上帝也罢，天意也罢，还是命运也罢。
Is it destiny that brings people together, or is it accident?
人们的相遇是天意还是偶然？
A General Election will be held which will seal his destiny one way or the other
一场决定他命运的大选即将举行。
She had always been mistress of her own destiny.
她总是能够掌握自己的命运。
We are masters of our own destiny.
我们是自己命运的主宰者。
3.doom n. 厄运，劫数
指不可避免的悲惨命运，如死亡、毁灭等。
Thousands of residents met their doom in this flood.
数千居民在这场洪水中丧生。
She had a sense of impending doom.
她预感到厄运已经逼近。
A sense of doom hung over the entire country.
整个国家都笼罩在厄运降临的气氛之中。
Despite the obvious setbacks, it is not all doom and gloom for the England team.
尽管明显受挫，但对英格兰队来说绝非胜利无望。
That argument doomed their marriage to failure.
那次争吵使他们的婚姻注定要失败。（动词）
Many thought that he was doomed to ignominious failure.
许多人认为他注定会极不光彩地失败。（动词）
He knew that if he lived, he would be doomed to spend the war as a prisoner.
他知道如果他活下来，他将注定以战俘的身份度过战争。（动词）
4.lot n. 命运，处境；际遇；境况；
指工作、社会地位等所处的境况，尤指不太好的处境。
She tried to accept her marriage as her lot in life but could not.
她想认命接受这段婚姻，但却做不到。
He has decided to throw in his lot with the far-right groups in parliament.
他已决定与议会中的极右团体共进退。
The organization has promised to improve the lot of the poor.
该组织许诺要改善穷人的处境。
After moving here, she seemed to be satisfied with her lot.
搬到这里以后，她似乎对自己的境况挺满意。