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1. An elderly unmarried woman
   - spinster
    
2. Any of various plants of the genus Zinnia cultivated for their variously and brightly coloured flower heads
   - zinnia, old maid flower
    
3. Commonly cultivated Old World woody herb having large pinkish to red flowers
   - periwinkle, rose periwinkle, Madagascar periwinkle, Cape periwinkle, red periwinkle, cayenne jasmine, Catharanthus roseus, Vinca rosea
    
4. The loser in a game of old maid
    
5. 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')

Derived forms: old maids

Type of: also-ran, card game, cards, flower, herb, herbaceous plant, loser, unmarried woman

Part of: Catharanthus, genus Catharanthus, genus Zinnia

Encyclopedia: Old maid