Courtesy of Theresa Shipley For decades, the lighter had been something of a mythological artifact in the Shipley household. US Marines vet Paul frequently reminisced about the wartime object ...

or 'lighter' and 'lightest' Now look at these two animals. If you are comparing them you might say: You can compare the mass of objects with symbols to show 'more than', 'less than' and 'is equal to'.