1. a device for keeping a door, gate, or window closed, consisting of a bar that falls into a catch

1. to fasten with a latch
2. to attach oneself to someone or something
Usage: often used with ‘onto’

Examples

• She lifted the latch and opened the garden gate.
• The old wooden door had a rusty iron latch.
• Please latch the window before you leave.
• Make sure to latch the gate so the dog doesn’t escape.
• The child latched onto his mother’s hand in the crowded store.
• He latched onto the new idea immediately.
• The baby latched onto the bottle and began drinking.