doab

As a proper noun river

is .

As a noun doab is

(india) a tongue or tract of land included between two rivers.

As nouns the difference between land and doab

is that land is loin (the flesh above the hip bone) while doab is (india) a tongue or tract of land included between two rivers.

As nouns the difference between tract and doab

is that tract is an area or expanse while doab is (india) a tongue or tract of land included between two rivers.

As a verb tract

is (obsolete) to pursue, follow; to track.

As nouns the difference between tongue and doab

is that tongue is the flexible muscular organ in the mouth that is used to move food around, for tasting and that is moved into various positions to modify the flow of air from the lungs in order to produce different sounds in speech while doab is a tongue or tract of land included between two rivers.

As a verb tongue

is on a wind instrument, to articulate a note by starting the air with a tap of the tongue, as though by speaking a 'd' or 't' sound (alveolar plosive).