1.  pitching(n = noun.act) - (baseball) playing the position of pitcher on a baseball team;
is a kind of playing

2.  pitching(n = noun.act) lurch, pitch - abrupt up-and-down motion (as caused by a ship or other conveyance); "the pitching and tossing was quite exciting"
is a kind of motility, motion, move, movement
has particulars: careen, rock, sway, tilt
Derived form verb pitch₂

1.  The act of throwing or casting; a cast; a pitch; as, wild pitching in baseball. [1913 Webster]

2.  The rough paving of a street to a grade with blocks of stone. Mayhew. [1913 Webster]

3.  A facing of stone laid upon a bank to prevent wear by tides or currents. [1913 Webster]

pitching change, pitching coach, pitching wedge