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1/I always see definitions where there is the word particular in the dictionary .

(ex:

Speech (on sth): a speech or lecture on a particular subject) )

What does particular mean?

2/In this context:

a speech or lecture on a particular subject (1) =a speech or lecture on a any subjects.(2)

Does particular have the meaning of any?If not, what is the difference in meaning btw (1) and (2)?

Q
Comments  
No, particular does not mean any, rather the opposite. It means 'specific'.
See 4 here:
http://www.m-w.com/dictionary/particular
It focusses on the specific, distinctive and special.
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What does specific mean in this context?

Q
Specific is more or less the opposite of general.

Quoc, doesn't your English teacher help you with anything at all?
YankeeSpecific is more or less the opposite of general.

Quoc, doesn't your English teacher help you with anything at all?

In this case, he should also first read his English-Vietnamese dictionary, I'm pretty sure it's there.
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Hi,

I know, but I want to have a brief standard definition in English only in this case.

Q