definition of
y

[1] #1 y n. [yttrium, Y, atomic number 39] a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys. wn

[2] #2 y n. [Y, wye] the 25th letter of the Roman alphabet. wn

[3] #3 y n. [Y, wye] the 25th letter of the Roman alphabet. wn