Synonyms for wall

noun

1. A physical barrier

   partition, divider, dam, embankment, dike, ditch, bank, levee, stockade, fence, stone wall, drywall, stone fence, parapet, retainer, rampart, bulwark, palisade, fort, cliff, barricade, floodgate, sluice gate, paling, wattle, wattling.

2. An obstacle; figurative

   barrier, obstruction, bar, cordon, entanglement, hurdle, resistance, defense, snag, hindrance, impediment, difficulty, limitation, restriction, retardation, knot, hitch, drawback, stumbling block, check, stop, curb, red tape*, fly in the ointment*, bottleneck*, red herring*, detour*.

3. A side; said of a cavity or space

   flank, partition, surface, brickwork, casing, bulkhead, façade, septum, precipice, cliff, bluff, outer envelope.