a book of maps or charts

I looked in the atlas to see where Naples was

a road atlas

the topmost vertebra of the backbone, articulating with the occipital bone of the skull

a stone carving of a male figure, used as a column to support the entablature of a Greek or Greek-style building

one of the Titans, who was punished for his part in their revolt against Zeus by being made to support the heavens. He became identified with the Atlas Mountains