keyhole

Definitions

1. The hole in a lock where the key is inserted and turns.
2. eye
3. Any small opening resembling the hole for a key in shape or function; especially, one that gives a vista of, or access to, a space beyond.
4. A small incision through which surgical instruments can reach into an anatomic space beyond.
5. caution
6. A circle cut out of a garment as a decorative effect, typically at the front or back neckline of a dress.
7. look! watch out!
8. A hole or excavation in beams intended to be joined together, to receive the key that fastens them.
9. A mortise for a key or cotter.
10. A transient column of vapor or plasma formed when using high energy beams, such as lasers, for welding or cutting.
11. A welding method in which a hole forms in the surface immediately ahead of the puddle in the direction of welding. The hole is filled as the weld progresses.
12. The free-throw lane together with the circle surrounding the free-throw line; key.
13. A gravitational keyhole.

Equivalents

Examples

“laser keyhole welding”

“keyhole plasma”

CEFR level