1. time interval a definite length of time marked off by two instants
  2. interval the distance between things
  3. sub-interval an interval that is included in another interval
  4. bounded interval an interval that includes its endpoints
  5. 24-hour interval time for Earth to make a complete rotation on its axis
  6. closed interval an interval that includes its endpoints
  7. open interval an interval that does not include its endpoints
  8. retentively in a retentive manner
  9. retrieval the act of regaining or saving something lost
  10. countervail oppose and mitigate the effects of by contrary actions
  11. red underwing moth having dull forewings and red-marked hind wings
  12. wonderful extraordinarily good or great
  13. lunitidal interval interval between the moon's transit of a particular meridian and the next high tide at that meridian
  14. rate of interest the percentage of a sum of money charged for its use
  15. ad interim for an intervening time; temporarily
  16. internal located inward
  17. Rotary International a group of businessmen in a town organized as a service club and to promote world peace
  18. pierid butterfly any of numerous pale-colored butterflies having three pairs of well-developed legs
  19. bean trefoil shrub with trifoliate leaves and yellow flowers followed by backward curving seed pods; leaves foetid when crushed
  20. musical interval the difference in pitch between two notes