Skim or dart is a term used to describe the action of quickly moving through an area. It is often used in reference to birds, such as swallows, which can be seen skimming or darting across the sky. The crossword solution for this term is 'FLIT, ' which is another word for quickly moving through an area. FLIT is also used to describe the movement of small animals, such as butterflies, which FLIT from flower to flower.