old maid

noun

1. 1

   a card game using a pack of cards from which one queen has been removed; players match cards and the player holding the unmatched queen at the end of the game is the loser (or `old maid')

2. 2

   the loser in a game of old maid

3. 3

   an elderly unmarried woman

4. 4

   commonly cultivated Old World woody herb having large pinkish to red flowers

5. 5

   any of various plants of the genus Zinnia cultivated for their variously and brightly colored flower heads