[v. in-ter-lok, in-ter-lok; n. in-ter-lok] 
| 1. | to fit into each other, as parts of machinery, so that all action is synchronized. |
| 2. | to interweave or interlace, one with another: The branches of the trees interlock to form a natural archway. |
| 3. | Railroads. (of switches, signals, etc.) to operate together in a prearranged order. |
| 4. | to lock one with another. |
| 5. | to fit (parts) together to ensure coordinated action. |
| 6. | Railroads. to arrange (switches, signals, etc.) to effect a predetermined sequence of movement. |
| 7. | the fact or condition of interlocking or of being interlocked. |
| 8. | the existence or an instance of an interlocking directorate. |
| 9. | a device for preventing a mechanism from being set in motion when another mechanism is in such a position that the two operating simultaneously might produce undesirable results. |
| 10. | Also called ignition interlock. a device or system that prevents an automotive engine from starting until the seat belt for any occupied front seat is fastened. |
| 11. | a stretch fabric made with a circular knitting machine having two alternating sets of long and short needles. |
| 12. | Movies. a device for synchronizing the action of a camera and sound recorder. |
tərˈlɒk