Usage of object, purpose, aim

[Liqichao]

:D hello everyone,
It seems that the objedct ,aim and purpose these three words are quite the same, but how can I tell them exactly? or what kind of different feelings or images they give to you when you use them?

thank you for your answers

[Mister Micawber]

.
They all give essentially the same image. Synonyms such as these show their minor differences in how they collocate and in the different fixed expressions they inhabit.

Money is no object.
Your idea is not to the purpose.
We aim to please.
.
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Native English teacher at Mister Micawber's