on strike

lightning strike

A (sometimes unofficial) strike by workers with little or no warning.

strike a blow

To hit; to successfully land a hit.

strike a chord

To elicit a significant reaction, especially one which is favorable or sympathetic.

strike a false note

To give the impression of being insincere, incongruous or inappropriate.

strike a light

To create a flame (using a match, flint, etc.).

strike it lucky

To have unexpected good fortune.

strike it rich

To become rich suddenly and unexpectedly.

strike oil

To have sudden good fortune, especially financially.