Undercut

verb (used with object), undercut, undercutting.
1.
to cut under or beneath.
2.
to cut away material from so as to leave a portion overhanging, as in carving or sculpture.
3.
to offer goods or services at a lower price or rate than (a competing price or rate) or than that of (a competitor).
4.
to weaken or destroy the impact or effectiveness of; undermine.
5.
Golf. to hit (the ball) so as to cause a backspin.
6.
Tennis. to slice (the ball) using an underhand motion.
7.
to cut (a sound recording) with grooves too shallow or with insufficient lateral motion of the stylus.
8.
Forestry. to cut a notch in (a tree) in order to control the direction in which the tree is to fall.
verb (used without object), undercut, undercutting.
9.
to undercut material, a competitor, a ball, etc.
noun
10.
a cut or a cutting away underneath.
11.
a notch cut in a tree to determine the direction in which the tree is to fall and to prevent splitting.
12.
Golf. a backspin.
13.
Tennis. a slice or cut made with an underhand motion.
14.
Chiefly British. a tenderloin of beef including the fillet.
15.
Dentistry. a tooth cavity prepared with a wide base for anchoring a filling securely.
adjective
16.
having or resulting from an undercut.
verb (ˌʌndəˈkʌt; ˈʌndəˌkʌt) -cuts, -cutting, -cut
1.
to charge less than (a competitor) in order to obtain trade
2.
to cut away the under part of (something)
3.
(sport) to hit (a ball) in such a way as to impart backspin
noun (ˈʌndəˌkʌt)
4.
the act or an instance of cutting underneath
5.
a part that is cut away underneath
6.
a tenderloin of beef, including the fillet
7.
(forestry, mainly US & Canadian) a notch cut in a tree trunk, to ensure a clean break in felling
8.
(sport) a stroke that imparts backspin to the ball