pitcher (Noun) — (baseball) the person who does the pitching. ex. "our pitcher has a sore arm"
pitcher (Noun) — An open vessel with a handle and a spout for pouring.
pitcher (Noun) — The quantity contained in a pitcher.
pitcher (Noun) — (botany) a leaf that is modified in such a way as to resemble a pitcher or ewer.
pitcher (Noun) — The position on a baseball team of the player who throws the ball for a batter to try to hit. ex. "he has played every position except pitcher"