Source : Webster's Revised Unabridged Dictionary (1913)

Throng \Throng\, v. i. [imp. & p. p. {Thronged}; p. pr. & vb. n.
   {Thronging}.]
   To crowd together; to press together into a close body, as a
   multitude of persons; to gather or move in multitudes.

         I have seen the dumb men throng to see him. --Shak.

Source : WordNet®

thronged
     adj : filled with great numbers crowded together; "I try to avoid
           the thronged streets and stores just before Christmas"