- hair [ her ] noun ***uncount the thing that grows on your head in a mass of thin fibers:long black haira girl with dark shoulder-length hairHe wore his hair in a ponytail.You need to brush your hair before you go out.a. uncount hair that grows on other parts of the body:facial/body hairb. uncount the hair that grows from an animal's skinc. count a single piece of hair:a few gray hairsget/keep out of someone's hairto keep away from someone in order to avoid trouble or to avoid annoying themthe hair of the dog (that bit you) HUMOROUSan alcoholic drink that makes you feel better when you drank too much alcohol the night beforelet your hair down INFORMALto relax and enjoy yourself because you are in a comfortable environmentmake someone's hair curl HUMOROUSto make someone suddenly feel shockedmake someone's hair stand on end OFTEN HUMOROUSto make someone feel very frightenednot harm/touch a hair on someone's headto not harm someone in any waynot have a hair out of placeto look very neat and cleantear/pull your hair out INFORMALto feel very worried or very annoyed about something because you do not know what to do about it=> SPLIT1
Usage of the words and phrases in modern English. 2013.