tumbling >> ˈtʌmb(ə)l
Definition: [verb] fall suddenly, clumsily, or headlong.
Example: she pitched forward, tumbling down the remaining stairs
Definition: [verb] perform acrobatic feats, typically handsprings and somersaults in the air.
Definition: [verb] dry (washing) in a tumble dryer.
Example: the machine gentle tumbles the clothes in cool air for ten minutes
Definition: [verb] understand the meaning or hidden implication of (a situation).
Example: she'll ring again as soon as she tumbles to what she's done
Definition: [verb] have sex with.
Example: he was tumbling a strange woman
Definition: [verb] clean (castings, gemstones, etc.) in a tumbling barrel.