Loch, Logjam, Mama, Mammy, Mater, Matriarch, Meddle, Mere, Millpond, Moat, Mole, Mom, Mother, Mound, Mummy, Obstruct, Oppose, Pack, Parapet, Plug, Pond, Pool, Portcullis, Puddle, Rampart, Repress, Reservoir, Resist, Restrain, Retard, Roadblock, Scotch, Slacken, Snub, Stalemate, Stall, Stay, Stem, Stench, Stepmother, Stop, Stopper, Stuff, Sump, Suppress, Tank, Tarn, Wall, Weir, Well, Work, Arrest, Bank, Bar, Barrage, Barrier, Bind, Block, Blockade, Boom, Brake, Breakwater, Buffer, Bulkhead, Bulwark, Bung, Check, Checkmate, Chink, Choke, Cistern, Clog, Cofferdam, Congest, Cork, Cover, Curb, Deadlock, Delay, Detain, Ditch, Earthwork, Embankment, Fence, Fill, Foul, Freeze, Gate, Groin, Halt, Hinder, Impede, Inhibit, Intercept, Interfere, Interrupt, Intervene, Jam, Jetty, Lagoon, Lake