padlock

shackle

Metal limb restraint

• haspHinged metal fastener
• boltThreaded rod for nuts
• tumblerFlat-bottomed drinking vessel

combination · clasp · latch · fasten · snap · click · engage · disengage · seal · catch

secure

Protected from harm

• guardWatchful defensive attention
• safeguardPrecaution against harm
• barrierObstruction preventing passage

vault · gate · fence · shed · toolbox · bike · chain · cable · storage · gym

brass

Copper-zinc metal mixture

• steelCarbon-hardened iron alloy
• hardenedMade tough or unfeeling
• laminatedBonded between protective layers

weatherproof · rustproof · corrosion · galvanized · chrome · zinc · alloy · forged · cast · stainless

open

Not closed

• accessRight to enter
• releaseTo let go
• entryAccess or submission

turn · twist · insert · fit · groove · notch · pick · jiggle · duplicate · master

pick

Pointed breaking tool

• bypassRoute that skirts obstacles
• shimThin piece for leveling
• hacksawFramed blade for metal

pry · force · break · cut · defeat · vulnerable · resistant · shrouded · protected · high-security

• locksdeadbolt, keys, deadbolts, combination locks, bolt locks
• securitysecurity guard, security cameras, alarm system, security system, safe
• keyscar key, house key, door key, master key, spare key
• padlocks
• security devicessecurity camera, alarm, security key, security badge, vault doors
• locks and keysdeadbolt, master key, skeleton key, keyhole, bolt