WordNet (r) 3.0 (2006):

wall in
    v 1: enclose with a wall [syn: wall in, wall up]

Moby Thesaurus II by Grady Ward, 1.0:

92 Moby Thesaurus words for "wall in":
   beleaguer, beset, besiege, blockade, board, bottle up, bound,
   box in, box up, brick, cage, chamber, check, clapboard, cloister,
   close in, compass, confine, constrain, contain, coop, coop in,
   coop up, cordon, cordon off, cork up, corral, crib, detain, encage,
   encircle, enclose, encompass, enshrine, face, fence in, glass,
   glaze, hedge in, hem in, hold, hold in custody, hold in restraint,
   house in, immure, impound, imprison, incarcerate, include, inhibit,
   jail, keep in, keep in custody, keep in detention, kennel, lath,
   leaguer, mew, mew up, paper, pen, pen in, pen up, plank, pocket,
   pound, quarantine, rail in, restrain, restrict, revet, seal up,
   shackle, shake, sheathe, shingle, shrine, shut in, shut up, slate,
   stable, stone, surround, thatch, tile, veneer, wall up, wallpaper,
   weatherboard, wrap, yard, yard up