Dilute/daɪˈluːt/ Definition 1 of 4Pro Tip 1/3Physical Mixing Remember 'dilute' often involves physically mixing liquids. She diluted the paint with turpentine for her art project. Pro Tip 2/3Not Always Water 'Dilute' can involve adding any substance that lessens concentration, not just water. The bartender diluted the cocktail with more juice. Pro Tip 3/3Taste Intensity Using 'dilute' can refer to making flavors less intense, often to improve taste. You may dilute the soup if it's too salty.