v. i. - To ascend or mount laboriously, esp. by use of the hands and feet.
v. i. - To ascend as if with effort; to rise to a higher point.
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.
v. t. - To ascend, as by means of the hands and feet, or laboriously or slowly; to mount.
n. - The act of one who climbs; ascent by climbing.