Ittar (Hindi/Urdu), also known as attar, is an essential oil derived from botanical sources.

Scented water, odoriferous water or sweet water, is a water with a sweet aromatic smell. It is made of flowers or herbs and is the precursor of the modern day perfume. Scented waters are also used in making other products such as pomanders and body care products.

An essential oil is a concentrated hydrophobic liquid containing volatile (defined as "the tendency of a substance to vaporize") aroma compounds from plants.

Used in perfumery and aromatherapy, absolutes are similar to essential oils. They are concentrated, highly aromatic, oily mixtures extracted from plants. Whereas essential oils are produced by distillation, boiling or pressing, absolutes are produced through solvent extraction, or more traditionally, through enfleurage.