Definition
To a high degree of precision; with the utmost exactness; to a nicety.
Origins
A reference to the very small diameter of a strand of hair: compare hair's breadth.
In Context
- "Pand[arus]. Youle remember your brothers excuſe? / Par[is]. To a hayre."
- "As to our own representative, the well-known athlete and international Rugby football player, E. D. Malone, he looks trained to a hair, and as he surveyed the crowd a smile of good-humored contentment pervaded his honest but homely face."
Also Said As
- to the turn of a hair