Bar, Beef, Bind, Bitch, Blockade, Boggle, Boycott, Bridle, Chain, Challenge, Complain, Cordon, Demonstrate, Demonstrator, Demur, Dismember, Dispute, Enchain, Enclose, Expostulate, Fasten, Fence, Fetter, Fireguard, Garrison, Goalkeeper, Goon, Grill, Guard, Guardsman, Hamper, Handcuff, Hedge, Hem, Hobble, Holler, Howl, Impale, Jailer, Keelhaul, Kick, Lash, Leash, Leg, Lookout, Manacle, March, Moor, Object, Observer, Outpost, Pale, Paling, Palisade, Patrol, Peg, Pile, Pinion, Post, Protest, Protester, Rack, Rail, Rally, Argus, Anchor, Remonstrate, Restrain, Revolt, Rope, Scout, Scruple, Secure, Sentinel, Sentry, Shackle, Shank, Spotter, Squawk, Stake, Stanchion, Straitjacket, Strap, Strike, Striker, Tether, Tie, Torture, Trammel, Upright, Van, Vanguard, Vertical, Wall, Ward, Warder, Watch, Watcher, Watchman