| 1. | a device for holding a door, gate, or the like, closed, consisting basically of a bar falling or sliding into a catch, groove, hole, etc. |
| 2. | to close or fasten with a latch. |
| 3. | to close tightly so that the latch is secured: The door won't latch. |
| 4. | latch on,
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| 5. | latch onto, Informal.
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