witness mark
n.β Β«Will there be a witness marks for the entire length of ground from the other runway to the other? Are you going to do the documenting of that?…Our team is documenting everything from the runway all the way to the final rest. And there are a number of witness marks. Whether itβs tree strikes, ground scars, theyβre looking at all of that.Β» ββABC News Now/Special Report” ABC News Aug. 26, 2006. (source: Double-Tongued Dictionary)