hair (hairs plural )
1 n-var Your hair is the fine threads that grow in a mass on your head.
usu supp N
I wash my hair every night..., ...a girl with long blonde hair..., I get some grey hairs but I pull them out.
2 n-var Hair is the short, fine threads that grow on different parts of your body.
The majority of men have hair on their chest..., It tickled the hairs on the back of my neck.
3 n-var Hair is the threads that cover the body of an animal such as a dog, or make up a horse's mane and tail.
I am allergic to cat hair., ...dog hairs on the carpet.
4 If you let your hair down, you relax completely and enjoy yourself.
let one's hair down phrase V inflects
...the world-famous Oktoberfest, a time when everyone in Munich really lets their hair down.
5 Something that makes your hair stand on end shocks or frightens you very much.
make sb's hair stand on end phrase V inflects
This was the kind of smile that made your hair stand on end.
6 If you say that someone has not a hair out of place, you are emphasizing that they are extremely smart and neatly dressed.
not a hair out of place phrase
(emphasis)
She had a lot of make-up on and not a hair out of place.
7 If you say that someone faced with a shock or a problem does not turn a hair, you mean that they do not show any surprise or fear, and remain completely calm.
not turn a hair phrase V inflects
No one seems to turn a hair at the thought of the divorced Princess marrying.
8 If you say that someone is splitting hairs, you mean that they are making unnecessary distinctions between things when the differences between them are so small they are not important.
split hairs phrase V inflects Don't split hairs. You know what I'm getting at.
bad hair day (bad hair days plural )People sometimes say they are having a bad hair day when they do not feel very happy or relaxed, especially because their hair does not look good.
INFORMAL n-count usu sing
All this fuss is because Carol is having a bad hair day.
camel-hair
The spellings camel hair, and in American English camel's hair are also used.
A camel-hair coat is made of a kind of soft, thick woollen cloth, usually creamy brown in colour. adj ADJ n
hair care , haircare
Hair care is all the things people do to keep their hair clean, healthy-looking, and attractive. n-uncount
...an American maker of hair-care products.
hair-raising
A hair-raising experience, event, or story is very frightening but can also be exciting. adj
...hair-raising rides at funfairs...
hair's breadth
Ahair's breadth is a very small degree or amount. n-sing a N
The dollar fell to within a hair's breadth of its all-time low...
hair shirt (hair shirts plural )
1 n-count A hair shirt is a shirt made of rough uncomfortable cloth which some religious people used to wear to punish themselves.
2 n-count If you say that someone is wearing a hair shirt, you mean that they are trying to punish themselves to show they are sorry for something they have done.
No one is asking you to put on a hair shirt and give up all your luxuries.
hair-trigger
If you describe something as hair-trigger, you mean that it is likely to change very violently and suddenly. adj ADJ n
His boozing, arrogance, and hair-trigger temper have often led him into ugly nightclub brawls..., A hair-trigger situation has been created which could lead to an outbreak of war at any time.
