y-intercept

The value of $y$ where a line crosses the $y$-axis; it is $c$ in $y=mx+c$.

The point where a graph crosses or meets the $y$-axis; its $x$-coordinate is zero.

The point where a graph meets the $y$-axis, so its $x$-coordinate is zero.

The point where a line crosses the $y$-axis; it is $c$ in the equation $y=mx+c$.