غُبٌّ

A sea dashing so that it goes far, or runs, upon the land: (JK, K, TA:) plural غُبَّانٌ. (TA.)

And Depressed land: plural [of pauc.] أَغْبَابٌ and [of mult.] غُبُوبٌ (K, TA) and غُبَّانٌ. (TA.)