The Collaborative International Dictionary of English v.0.48:

Moringa \Mo*rin"ga\, prop. n. [Malayam murunggi.] (Bot.)
   A genus of trees of Southern India and Northern Africa. One
   species (Moringa pterygosperma) is the horse-radish tree,
   and its seeds, as well as those of Moringa aptera, are
   known in commerce as ben or ben nuts, and yield the oil
   called oil of ben.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ben \Ben\, Ben nut \Ben" nut`\ . [Ar. b[=a]n, name of the tree.]
   (Bot.)
   The seed of one or more species of moringa; as, oil of ben.
   See Moringa.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ben \Ben\, adv. & prep. [AS. binnan; pref. be- by + innan
   within, in in.]
   Within; in; in or into the interior; toward the inner
   apartment. [Scot.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ben \Ben\, n. [See Ben, adv.]
   The inner or principal room in a hut or house of two rooms;
   -- opposed to but, the outer apartment. [Scot.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ben \Ben\
   An old form of the pl. indic. pr. of Be. [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bene \Bene\, Ben \Ben\, n. [Native name.] (Zool.)
   A hoglike mammal of New Guinea (Porcula papuensis).
   [1913 Webster]

WordNet (r) 3.0 (2006):

ben
    n 1: a mountain or tall hill; "they were climbing the ben"

V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

BEN
       BEstaetigungsNummer (banking)


Hitchcock's Bible Names Dictionary (late 1800's):

Ben, a son