length

Happiness makes up in height for what it lacks in length.

the length of a book

a length of rope

[…] open your book of the play, which you have previously carefully perused, and at the same time marked with the proper calls, as thus: a length (or 42 lines) before an entrance, with a pen make a figure on the margin, […]

An artificial bid doesn't necessarily show length in the suit being bid, it has an altogether different meaning.