SINGLE (4)

Sin″gle, n. 1. 1. A unit; one; as, to score a single.
2. 2. pl. The reeled filaments of silk, twisted without doubling to give them firmness.
3. 3. A handful of gleaned grain.
4. 4. (Law Tennis) A game with but one player on each side; — usually in the plural.
5. 5. (Baseball) A hit by a batter which enables him to reach first base only.