y

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y noun
or Y /ˈwaɪ/
plural y's or ys or Y's or Ys /ˈwaɪz/
y
noun
or Y /ˈwaɪ/
plural y's or ys or Y's or Ys /ˈwaɪz/
Learner's definition of Y
: the 25th letter of the English alphabet
[count]
[noncount]
[noncount] mathematics used to represent especially a second unknown quantity
[noncount] used in the phrase x, y, and z to refer to the second thing in a group of three unnamed things
[count] : something that is shaped like a Y
the Y US, informal : the YMCA or the YWCA
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