rubai |
undefined |
As a noun rubai
is quatrain in classical arabic, persian, turkic or urdu poetry.
As an adjective undefined is
lacking a definition or value.
rubab |
rubai |
As nouns the difference between rubab and rubai
is that
rubab is a traditional central asian lute-like musical instrument while
rubai is quatrain in classical arabic, persian, turkic or urdu poetry.