Long/lɔːŋ/ Definition 1 of 8Pro Tip 1/2Physical Distance Used to describe a measurement from one end to the other, often tangible objects. She drew a long line on the board. Pro Tip 2/2Exaggeration Caution Avoid exaggeration. Something isn't 'long' just by being bigger than something else. It's a long table, not a long spoon.