It what context do we use " Hairs" in the english language, is it correct to use it?

Answer 1

If we are talking about a small enough number to count we use it. Like "I have a couple of hairs growing on my chin"
Hair is a "non-count" noun, so any time you are actually counting you use hairs.

Now that I think about it, any "number" uses hairs, even 100,000, so go nuts!

Answer 2

Splitting Hairs: which means to be focused on the minute details
the plural is used when you are talking about specifics, and when the hair in question does not form a solid mass. i.e. The hair on one's head, versus the hairs surrounding one's navel.

If you could or are counting the plural is accurate, if some one pulls out some hair, or they pulled out a clump of hair, or did they pull out a few hairs, or pulled out 10 hairs.

i doubt i helped any, English is a confusing language.

Answer 3

In the German-settled areas around St Louis, MO, you will hear people say "I had my hairs cut yesterday." I believe this is a literal translation from the German.

Otherwise, just when counted or otherwise quantified (He found some hairs on the table: The hairs on his head [assume an "all" here] stood straight up.).

There are probably some other unusual contexts, too.

Answer 4

When each hair is counted, we use "hairs." "There are 10 hairs on the organism's legs." When not counted, and referred to as a substance, we use "hair." "The hair on his head is thinning out."

Answer 5

I think Ronin has it right with the "counting" answer ...although really it's all just splitting hairs lol.

Answer 6

He had combed his two hairs over the top of his head.

Answer 7

He stood in the cross hairs of my rifle.
-MM