Adam refers to humanity collectively, an individual human being, or the proper name of the first man. It appears over 550 times. The word is related to adamah (ground/earth), reflecting Genesis' account of man formed from dust.
The theological weight of adam lies in the dual nature of humanity — formed from earth yet bearing God's image. Paul contrasts the first Adam with Christ as the 'last Adam' (1 Corinthians 15:45), making this word central to salvation history and the doctrine of original sin and redemption.