WordNet (r) 3.0 (2006):

leave behind
    v 1: depart and not take along; "He left behind all his
         possessions when he moved to Europe"
    2: be survived by after one's death; "He left six children"; "At
       her death, she left behind her husband and 11 cats" [syn:
       leave, leave behind]
    3: leave unchanged or undisturbed or refrain from taking; "leave
       it as is"; "leave the young fawn alone"; "leave the flowers
       that you see in the park behind" [syn: leave, leave
       alone, leave behind]

Moby Thesaurus II by Grady Ward, 1.0:

51 Moby Thesaurus words for "leave behind":
   abandon, back out, beg off, bereave, catch up with, come up to,
   come up with, cry off, depart from, discard, distance, drop out,
   evacuate, forsake, gain on, gain upon, get ahead of, go back on,
   hold the field, jettison, jilt, lap, leave, leave flat, leave over,
   leave standing, maroon, orphan, outdistance, outpace, outrun,
   outsail, outstrip, overhaul, overpass, overtake, pass, pull out,
   quit, quit cold, renege, say goodbye to, shoot ahead of,
   stand down, steal a march, surpass, take leave of, throw over,
   vacate, widow, withdraw