Available Definitions:
1) n. - Something shaped like the letter Y; a forked piece resembling in form the letter Y.
2) n. - One of the forked holders for supporting the telescope of a leveling instrument, or the axis of a theodolite; a wye.
3) n. - A forked or bifurcated pipe fitting.
4) n. - A portion of track consisting of two diverging tracks connected by a cross track.
5) pron. - I.