latch

1. To close or lock as if with a latch.
2. To catch; lay hold of.

1. 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.
2. A flip-flop electronic circuit
3. A latching.
4. A crossbow.
5. That which fastens or holds; a lace; a snare.
6. A breastfeeding baby's connection to the breast.
7. A lightweight lock to protect internal structures from being modified by multiple concurrent accesses.

verb

To smear; to anoint.