Dictionary
re•but
Pronunciation: (ri-but'), [key]
—v., -but•ted, -but•ting.
—
v.t.
1. to refute by evidence or argument.
2. to oppose by contrary proof.
—
v.i.
to provide some evidence or argument that refutes or opposes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.