When you unlock your front door, you open the latch. A latch is a fastener or lock that you open with a key.

A latch can usually be opened with a key or by turning a knob or lifting a hook or bar. You can also use the word latch as a verb, like when your mom reminds you to latch the front and back doors before you leave for school in the morning. In some places, the word "latch-key" is used to mean "key." The root of latch is the Germanic word læccan, "to grasp or seize."

Definitions of latch
  1. noun
    catch for fastening a door or gate; a bar that can be lowered or slid into a groove
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    type of:
    a fastener that fastens or locks a door or window
  2. noun
    spring-loaded doorlock that can only be opened from the outside with a key
    synonyms: door latch
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    type of:
    a fastener fitted to a door or drawer to keep it firmly closed
  3. verb
    fasten with a latch
    latch the door”
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    type of:
    fasten, fix, secure
    cause to be firmly attached
Word Family

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