1. a group of eight; eight musicians

2. isolation; seclusion; the state of being alone

3. solitude
isolation; seclusion; the state of being alone

4. an athletic contest consisting of five different events

5. pentathlon
an athletic contest consisting of five different events

6. a group or series of eight; in music, a tone eight degrees higher or lower than another tone

7. octave
a group or series of eight; in music, a tone eight degrees higher or lower than another tone

8. a card game played by one person

9. solitaire
a card game played by one person

10. a polygon with five sides and five angles

11. pentagon
a polygon with five sides and five angles

12. a mollusk with eight tentacles

13. octopus
a mollusk with eight tentacles

14. a shape with eight sides and eight angles

15. octagon
a shape with eight sides and eight angles