door chain

Partial opening lock

A door chain is a short metal chain attached to a door frame that allows a door to open only a few inches when engaged.

The device lets someone see and speak to a visitor without fully opening the door: She kept the door chain on while talking to the stranger.

Door chains provide a modest layer of security, though they're easily defeated by force.

security

latch

Door-securing catch

  • boltThreaded rod for nuts
  • deadboltKey-operated door lock
  • lockMechanism requiring a key

padlock · peephole · hasp · fastener · clasp · catch · hook · reinforcement · anchoring · safeguard

home

entryway

Passage serving as entrance

doorframe · jamb · hinge · knob · entrance · exit · welcome mat · visitor · houseguest · apartment

restriction

barrier

Obstruction preventing passage

impediment · hindrance · gap · crack · access control · child safety · forced entry · shoulder charge · intruder

privacy

seclusion

Voluntary withdrawal from society

screening · stranger · caller · solicitor · delivery · conversation · identification · vetting · caution · wariness

Categories
Opposites
security mechanism strength

door chaindeadbolt

Key-operated door lock

vault door · security bar · mortise lock · bank vault · barricade

access restriction vs. access facilitation

door chainopen door

Barrier removed for entry

unlocked door · welcome mat · doorstop · open-door policy · door wedge

Family

door, chain, doors, doored, doorway, doorman, doorstep, doorbell, indoor

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G