spring-loaded doorlock that can only be opened from the outside with a key
"The security system failed because the vault's heavy latch, which required a special key to open from the outside, jammed when power was cut."
catch for fastening a door or gate; a bar that can be lowered or slid into a groove
"The child quickly slipped his foot under the latch to keep the garden gate from swinging open."
A fastening for a door that has a bar that fits into a notch or slot, and is lifted by a lever or string from either side.
"The child safety expert explained that the LATCH system allows parents to install car seats without relying on the vehicle's seat belts alone."
Initialism of lower anchors and tethers for children.
To close or lock as if with a latch.
"He carefully latched his forehead with holy water before stepping into the church."
To smear; to anoint.