A cosmetic applied as a line around the eyes to make them appear larger or more noticeable.
She was wearing thick, black eyeliner.
The makeup artist used a waterproof gel eyeliner for a long-lasting, smudge-free look that lasted throughout the event.
The liquid eyeliner allowed for precise application, resulting in a sharp and dramatic line.
The waterproof eyeliner ensured that her eye makeup remained intact even during humid weather.