by a nose

US /baɪ ə noʊz/
UK /baɪ ə noʊz/
"by a nose" picture
1.

por un pelo, por los pelos

by a very small amount; narrowly

:
He won the race by a nose.
Ganó la carrera por un pelo.
We finished the project on time, but only by a nose.
Terminamos el proyecto a tiempo, pero solo por un pelo.