There are several synonyms for the word "snift," which refers to a small amount of something. One word that is similar in meaning is "nip," which can refer to a quick, small amount of a drink or a pinch of something. Another synonym is "smidgen," which is a small quantity of something, often used to refer to cooking measurements. "Dash" is another synonym that can refer to a small amount of liquid or flavoring added to a recipe. Finally, "whiff" can be used as a synonym for "snift" to refer to a faint or subtle scent or aroma.