Sizes

Something is big if it is many times larger than something else. The ship in the picture is much bigger than the little boat at the front of the picture. The opposite of big is small.

A dwarf is a small person, born with a condition that makes them unusually small. Most dwarves have short arms and legs and facial features that are distinctive. A dwarf of any kind of plant or animal is a smaller variety of that plant or animal. Dwarf forms of animals are often kept as pets.

Gigantic is another word for huge.

Large is another word for big. The cat in the picture is large.

Something is long if it goes for a considerable way in one direction. Something goes for a long time if it happens for an extended period. The lizard in the picture has a very long tail. The opposite of long is short.