The DICT Development Group

  152 Moby Thesaurus words for "defense":
     aegis, answer, apologetic, apologetics, apologia, apology,
     arch dam, argument, argumentation, armament, armor, arms, backfire,
     backstop, bamboo curtain, bank, bar, barrage, barrier,
     bear-trap dam, beaver dam, bicker, bickering, boom, breakwater,
     breastwork, brick wall, buffer, bulkhead, bulwark, casuistry,
     cofferdam, comeback, confutation, contention, contraremonstrance,
     controversy, counteraccusation, counterattack, counterblast,
     counterblow, countercharge, counterclaim, counterfire,
     counterinsurgency, countermeasure, counterreply, counterrevolution,
     counterstatement, counterstep, counterstroke, cover, dam, demurrer,
     denial, dike, disputation, dispute, ditch, earthwork, embankment,
     exception, exculpation, excuse, explanation, eye, fastness, fence,
     flyting, fort, fortress, gate, gravity dam, groin, guard, hassle,
     hubbub, hydraulic-fill dam, iron curtain, jam, jetty,
     justification, leaping weir, lee, levee, litigation, logjam,
     logomachy, milldam, moat, mole, mound, munitions, objection,
     paper war, parapet, passage of arms, plea, pleading, pleadings,
     polemic, polemics, portcullis, preservation, protection,
     protective custody, rampart, rationalization, rebuttal, rebutter,
     refuge, refutation, rejoinder, replication, reply, response,
     retort, return, rhubarb, riposte, roadblock, rock-fill dam,
     safeguard, safekeeping, safety, seawall, security, set-to, shade,
     shadow, shelter, shield, shutter dam, special demurrer,
     special pleading, statement of defense, stone wall, stronghold,
     surrebuttal, surrebutter, surrejoinder, verbal engagement, wall,
     war of words, ward, watchful eye, weaponry, weapons, weir,
     wicket dam, work, wrangling