Isbas is a 5 letter English word. It's valid Scrabble word worth 7 points. It's valid Words with friends word worth 8 points.
You can make 45 anagrams from letters in isbas (abiss).
1775-85; Russian izbá (diminutive istópka), Old Russian istŭba house, bath, cognate with Serbo-Croatian ìzba small room, shack, Czech jizba room, Old Czech jistba, jizdba, all Slavic *jĭstŭba
They saw no less than three kinds of houses—first, the “isbas,” built of logs, and not unlike the log-cabins of America.
The cottages are very few and far between—generally a collection of little wood hovels, or "isbas," as they are called.