WordNet (r) 3.0 (2006):

spread over
    v 1: form a cover over; "The grass covered the grave" [syn:
         cover, spread over]

Moby Thesaurus II by Grady Ward, 1.0:

38 Moby Thesaurus words for "spread over":
   apply to, bespread, blanket, block, canopy, cloak, clothe, cloud,
   cope, cover, cover up, cowl, curtain, eclipse, film, grow over,
   hood, lay on, lay over, mantle, mask, muffle, obduce, obscure,
   occult, overgrow, overlay, overspread, put on, run riot, screen,
   scum, shield, superimpose, superpose, swarm over, teem over,
   veil