watertight Synonym

accumulation, development, increase, growth, expansion, escalation, rise, enhancement, intensification, amplification, augmentation, progression, strengthening, surge, boost, advance, improvement, enlargement, proliferation, reinforcement, accretion, aggregation, assembly, collection, formation, gathering, buildup [x]

fence, barrier, partition, enclosure, barricade, rampart, bulwark, parapet, wall, hedge, palisade, stockade, fortification, demarcation, limit, border, perimeter, edge, margin, boundary [x]

seal, fill, plug, close, stop, block, insulate, waterproof, secure, cover, patch, mend, repair, fix, tighten, bind, fasten, cement, glue, adhere, bond, join, unite, connect, link, attach, affix, stick, paste, gum, tape, clamp, brace, reinforce, support, shore, bolster, buttress, prop, underpin, strengthen, fortify, consolidate, solidify, stabilize [x]

commence, start, initiate, launch, begin, inaugurate, open, kick off, embark, set in motion, get underway, set about, undertake, institute, establish, pioneer, introduce, instigate, trigger, activate, implement, put in place, set up, lay the foundation, get going, get started, make a start, get off the ground, take the first step, break the ice, get cracking, get the ball rolling, make a beginning, set the wheels in motion, start the ball rolling, start off, start out, take off, get under way, set forth, set out, strike out, take the plunge, turn on, turn up [x]

basis, groundwork, base, underpinning, bedrock, footing, cornerstone, infrastructure support, root, establishment, institution, fund, endowment, origin, inception, genesis, commencement, start, beginning, formation, creation, initiation, launch, setup, founding, start-up, organization, source, bed, substratum, substructure [x]

caulk, filler, adhesive, putty, mastic, grout, cement, binder, glue, paste, resin, seal [x]

barrier, enclosure, railing, wall, hedge, barricade, palisade, partition, screen, stockade, boundary, border, bulwark, rampart, parapet, paling, hurdle, guardrail, balustrade [x]

beam, support, joist, truss, brace, crossbeam, lintel, rafter, spar, strut, framework, scaffold, stanchion, upright, post, column, pillar, bar, girth, stringer, purlin, ledger, cantilever, arch, rib, stay, tie, member, plank, timber, board, batten, rail, rod, shaft [x]

renovate, refurbish, revamp, overhaul, update, modernize, reconstruct, redevelop, restore, renew, recondition, remake, refashion, rework, rebuild, redesign, reorganize, reengineer, transform, improve, upgrade, alter, change, modify, adjust, adapt, refit, retrofit, retool, reconfigure, reimagine, replan, reframe, reconstitute, reestablish, reassemble, reorient, reformat, recompose, reedit, reforge, reprocess, reprogram [x]

impregnable, invulnerable, impenetrable, indomitable, unassailable, invincible, secure, unyielding, indestructible, impervious [x]

siding, covering, sheathing, coating, overlay, skin, facade, veneer, surfacing, casing, paneling, exterior, shell, envelope, outer layer, facing, lamination, plating, shroud, jacket [x]

timber, lumber, wood, forest product, timberwood, hardwood timber, hardwood lumber, solid wood, hardwood plank, hardwood board [x]

wood shavings, wood dust, wood particles, wood chips, wood powder, saw shavings, saw chips, saw powder, saw particles, timber dust, timber shavings, timber particles, timber chips, timber powder, lumber dust, lumber shavings, lumber particles, lumber chips, lumber powder [x]

building, constructing, raising, assembling, setting up, putting up, establishing,, forming, fabricating, erecting, mounting, installing, positioning, placing, setting, standing, elevating, lifting, hoisting, upraising, rearing, founding, instituting, initiating, originating, starting, commencing, beginning, launching, inaugurating, organizing, structuring, framing, shaping, developing, producing, manufacturing, generating, crafting, making, fashioning, designing, engineering, planning, devising, preparing, arranging, configuring [x]

destroy, wreck, raze, tear down, dismantle, level, flatten, ruin, annihilate, obliterate, smash, crush, break down, bulldoze, topple, devastate, shatter, disassemble, knock down, pull down, take apart, eradicate, exterminate, extirpate, liquidate, decimate, ravage, desolate, raze to the ground, lay waste, reduce to rubble, trash, gut, wreckage, wrecking, wrecked, wrecking ball, wrecking crew, wrecking yard, wrecking bar, wrecking company, wrecking service, wrecking operation, wrecking business [x]