noun
[ sing. ] a very small amount or distance :
We won by a hair's breadth.
They were within a hair's breadth of being killed.
noun
[ sing. ] a very small amount or distance :
We won by a hair's breadth.
They were within a hair's breadth of being killed.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005