Y

1. The Young Men's Christian Association, The Young Women's Christian Association, or one of their facilities. Used with the.
2. The Young Men's Hebrew Association, The Young Women's Hebrew Association, or one of their facilities. Used with the.

1. The symbol for the element yttrium.
2. The symbol for admittance (sense 3).
3. The symbol for hypercharge.

(Metric) As an upper-case prefix, Y-, see yotta-, e.g. Yg = yottagram. As a lower-case prefix, y-, see yocto-, e.g. yg = yoctogram.

The symbol for the element yttrium.

Chemical symbol, yttrium.