colour; color; complexion; skin colour; look (on one's face); expression; appearance
short joke; quick one-liner
ball; sphere; bead (of sweat, dew, etc.); drop; ball (in sports); pitch (e.g. in baseball); pile (of noodles, etc.)
spreading; disseminating; scattering; diffusion (of light, gas)
to be effective; to take effect; to work; to function well; to be possible (to do, use, etc.); to be able to
extensive; vast range; wide scope
fatigue; weariness; exhaustion; fatigue (of metal, etc.)
to work; to labor; to function; to operate; to commit (e.g. a crime); to perpetrate
just to make sure; just to be sure; for confirmation; just in case; for caution's sake; by way of precaution