7-letter words containing b, o, i, n, a
- rainbow — a bow or arc of prismatic colors appearing in the heavens opposite the sun and caused by the refraction and reflection of the sun's rays in drops of rain. Compare primary rainbow, secondary rainbow.
- robinia — any tree of the leguminous genus Robinia, esp the locust tree
- sorbian — of or relating to the Wends or their language.
- taborin — a small tabor.
- zamboni — a tractorlike machine used on an ice skating rink to smooth the ice
- zenobia — (Septimia Bathzabbai) died after a.d. 272, queen of Palmyra in Syria a.d. 267–272.