DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   grounds
       n 1: your basis for belief or disbelief; knowledge on which to
            base belief; "the evidence that smoking causes lung cancer
            is very compelling" [syn: evidence, grounds]
       2: the enclosed land around a house or other building; "it was a
          small house with almost no yard" [syn: yard, grounds,
          curtilage]
       3: a tract of land cleared for some special purposes (recreation
          or burial etc.)
       4: a justification for something existing or happening; "he had
          no cause to complain"; "they had good reason to rejoice"
          [syn: cause, reason, grounds]
       5: dregs consisting of solid particles (especially of coffee)
          that form a residue; "it is a Middle Eastern custom to read
          your future in your coffee grounds"