A human being with XY chromosomal biology. If healthy and born without birth defects, capable of producing sperm and impregnating a woman. Denser bone structure and musculature, and lower overall fat content.
Outer genital indicators being a penis and a scrotum containing two testicles. No breasts capable of lactation. Higher percentage of body hair, higher testosterone. Less nurturing, higher lung stamina as compared to women (based on the size of the lungs), a larger body than most women.
Gender roles including providing for a family, offering protection and security. Less emotional and not as good at nurturing. More tendencies to lose control of emotions and to engage in combat with other humans.
I hope that covers both anatomy and sociology. At least, on my part. Women are COMPLETELY different creatures. And there is cross-over, but this is answering your question in broad strokes. With no equivocation.