Masculinity refers to the qualities, characteristics, and behaviors traditionally associated with being male. Throughout history and across different cultures, ideas about masculinity have included traits like physical strength, courage, protectiveness, and leadership. A father teaching his son to change a tire, a brother standing up for his younger siblings, or a coach encouraging a team to persevere through a tough season might all be showing aspects of masculinity.

What counts as masculine varies widely between cultures and has changed over time. In ancient Sparta, masculinity meant being a disciplined warrior. In medieval Europe, it included chivalry and honor. In many Native American cultures, it involved being a skilled hunter and provider. Today's understanding of masculinity includes many different expressions: a scientist's patient problem-solving, a teacher's dedication to students, a musician's creative expression, or an engineer's careful attention to detail.

Masculinity can involve qualities like responsibility, self-control, hard work, and caring for others. Some people confuse masculinity with never showing emotion or always acting tough, but strength can also include knowing when to be gentle, when to ask for help, and when to show compassion.

The opposite concept is femininity, which refers to qualities traditionally associated with being female. People can show a mix of both masculine and feminine traits.