A location where a stream is shallow and the bottom has good footing, making it possible to cross from one side to the other with no bridge, by walking, riding, or driving through the water; a crossing.
A stream; a current.
verb
To cross a stream by walking through it.
2016, Bruce McClure and Deborah Byrd, "EarthSky's meteor shower guide for 2016" in earthsky.org, http://earthsky.org/astronomy-essentials/earthskys-meteor-shower-guide
Some who witnessed the 1966 Leonid meteor storm said they felt as if they needed to grip the ground, so strong was the impression of Earth plowing along through space, fording the meteoroid stream.