(1):
(v. i.) To become expanded or inflated; to swell.
(2):
(v. t.) To stretch out or extend in all directions; to dilate; to enlarge, as by elasticity of parts; to inflate so as to produce tension; to cause to swell; as, to distend a bladder, the stomach, etc.
(3):
(v. t.) To extend in some one direction; to lengthen out; to stretch.