noun 1 The twenty-fifth letter of the alphabet.
Example sentences
‘Find fun games, crafts, stories, and other educational activities all related to the letter Y.’ ‘Created by two of todays wittiest, most imaginative minds, The Alphabet from A to Y with Bonus Letter Z! is a sheer delight from A to Z.’ 1.1 Denoting the next after X in a set of items, categories, etc.
Example sentences
‘What Comes Next After Generation X? ... I would say, generation Y.’ ‘After Boomers and X's, Here Come the Y's.’ 1.2 Denoting a second unknown or unspecified person or thing: ‘the claim that chemical X causes birth defect Y’
More example sentences
‘In mathematics, Y is the second in a set of two or three unknowns comprising x, y, and z.’ ‘Y denotes a second unknown or unspecified person or thing: the claim that chemical X causes birth defect Y.’ 1.3 usually "y" The second unknown quantity in an algebraic expression, usually the dependent variable.
Example sentences
‘By convention, we call the dependent variable y.’ ‘In algebra, a variable is a symbol used to represent any number. For example, in this equation:. 2(x+y) = 2x + 2y. x and y are variables.’ 1.4 usually "y" Denoting the secondary or vertical axis in a system of coordinates: [in combination] ‘the y-axis’
More example sentences
‘The horizontal axis is normally labeled x, and the vertical axis is normally labeled y.’ ‘Cartesian coordinate system with the circle of radius 2 centered at the origin marked in red. The equation of the circle is x2 + y2 = 4..’ 2 "Y" A shape like that of a capital Y:
[in combination] ‘rows of tiny Y-shaped motifs’
2 North American informal A YMCA or YWCA hostel:
‘Scott was living at the Y’
More example sentences
‘With the intensity of the heat and the humidity becoming all a little too much, I came back to the Y, for a swim and for a sleep.’ ‘Its Fun To Stay At The Y in HK.’ The chemical element yttrium.
Year(s):
‘orbital period (Pluto): 248.5y’