1. junk bond a bond with a credit rating of BB or lower
  2. ionic bond a chemical bond between oppositely charged ions
  3. incumbent necessary as a duty or responsibility; morally binding
  4. unbound not restrained or tied down by bonds
  5. unkind lacking kindness
  6. jug band a musical group that uses jugs and washboards and kazoos and other improvised instruments
  7. unbind untie or unfasten
  8. unbend straighten up or out; make straight
  9. junk food food that tastes good but is high in calories having little nutritional value
  10. inbound directed or moving inward or toward a center
  11. neckband a band around the collar of a garment
  12. uncombined not joined or united into one
  13. unknot become or cause to become undone by separating the fibers or threads of
  14. young bird a bird that is still young
  15. junction an act of joining or adjoining things
  16. junketing taking an excursion for pleasure
  17. vagabond a wanderer with no established residence or means of support
  18. wedding band a ring given to the bride at the wedding
  19. junkyard a field where junk is collected and stored for resale
  20. bunk bed beds built one above the other