Life-size means exactly as big as the real thing. A life-size statue of Abraham Lincoln stands as tall as Lincoln actually was: about 6 feet 4 inches. A life-size model of a woolly mammoth in a museum towers over visitors at the same height those extinct creatures reached: around 11 feet at the shoulder.

Museums often display life-size dinosaur skeletons so visitors can grasp how enormous a T. rex really was, or how surprisingly small some species were. Artists create life-size sculptures of people and animals to help us understand their true proportions. A life-size cutout of a celebrity looks just like standing next to the actual person.

The term helps us distinguish between models that shrink things down (like a toy car) or blow them up (like those giant pencils some stores use as decorations) and representations that show the genuine, original dimensions. When something is described as life-size, you're seeing it at its true scale, which can surprise people. That giant squid in the aquarium? Seeing it life-size makes you realize just how massive ocean creatures can be.