WordNet (r) 3.0 (2006):

get hold of
    v 1: get into one's hands, take physically; "Take a cookie!";
         "Can you take this bag, please" [syn: take, get hold
         of]
    2: be in or establish communication with; "Our advertisements
       reach millions"; "He never contacted his children after he
       emigrated to Australia" [syn: reach, get through, get
       hold of, contact]
    3: affect; "Fear seized the prisoners"; "The patient was seized
       with unbearable pains"; "He was seized with a dreadful
       disease" [syn: seize, clutch, get hold of]

Moby Thesaurus II by Grady Ward, 1.0:

60 Moby Thesaurus words for "get hold of":
   abduct, absorb, annex, appreciate, apprehend, ascertain,
   assimilate, be informed, be with one, become acquainted with,
   broaden the mind, carry off, catch, catch on, comprehend, conceive,
   cram the mind, determine, dig, digest, discover, fathom, find,
   find out, find out about, follow, gain knowledge, get, get at,
   get the drift, get the idea, get the picture, glom on to, grab,
   grasp, have, have it taped, ken, kidnap, know, lay hands on, learn,
   learn about, load the mind, master, pick up information, read,
   realize, savvy, seize, seize the meaning, sense, shanghai, take,
   take in, take over, take possession, take up, throttle,
   understand