Y /waɪ/noun 6exclamation 1forms 2 noun6 •A figure or mark in the shape of the letter Y. •(US, informal) A particular facility run by the YMCA/YWCA.When a 50ish woman at my Y learned that I was about to turn 80, she exclaimed, “80 is the new 60, and you set a great example for the rest of us!” — 2021 •A Y-shaped object, such as a railroad fork or a support for a telescope; a wye, a bifurcation. •Abbreviation of year (In some contexts as YY or YYYY to indicate only the last 2-digits or all 4-digits.) •A moth of the genus Plusia, having markings resembling the letter Y. •A commune of Somme department, Hauts-de-France region, France. exclamation1 •Abbreviation of yes. formsY's · Ys
