An experimental platform that simulates earthquake motion to verify seismic performance of building structures.

(slang) what is happening?; what's up?

To grasp another person's hands as an expression of greeting, farewell, agreement, etc.

(Ireland) an instance of shaking hands; a handshake

To remove (something attached to, on or clinging to an object) by shaking. / To dissociate oneself from (an allegation or rumour). / To lose someone who is tracking you

Something fast, or easy to use or perform; a simple, crude object or action. / (US, military, slang, historical) A non-commissioned officer with little experience, qualified through a special course.

Crude, unsophisticated; not professionally done, improvised.

Momentous; of great import; of great significance, importance or consequence.

plural of shake-up

present participle of shake up