Available Definitions:
1) v. i. - To ascend or mount laboriously, esp. by use of the hands and feet.
2) v. i. - To ascend as if with effort; to rise to a higher point.
3) v. i. - To ascend or creep upward by twining about a support, or by attaching itself by tendrils, rootlets, etc., to a support or upright surface.
4) v. t. - To ascend, as by means of the hands and feet, or laboriously or slowly; to mount.
5) n. - The act of one who climbs; ascent by climbing.