pitcher, hurler, twirler -- ((baseball) the person who does the pitching; "our pitcher has a sore arm")
pitcher, ewer -- (an open vessel with a handle and a spout for pouring)
pitcher, pitcherful -- (the quantity contained in a pitcher)
pitcher -- ((botany) a leaf that that is modified in such a way as to resemble a pitcher or ewer)
pitcher, mound -- (the position on a baseball team of the player who throws the ball for a batter to try to hit; "he has played every position except pitcher"; "they have a southpaw on the mound")