Meaning of particular in English

Adjective

1. only this one and no other; individual

I want this particular painting.

2. more than usual; special

Do you have a particular reason for using this?
The path is very muddy, so take particular care when you are walking.

Meaning of particular in English

Noun

1. a point

The judgement is correct in every particular.

2. a detail

go into particulars ー enter into details ー explain in detail