Partitive/ˈpɑːrtətɪv/ Definition 1 of 2Pro Tip 1/3Fractional Quantities Partitives show fractional quantities, often used with food, substances, or abstract ideas. I drank some of the water. Pro Tip 2/3Indefinite Quantities Use partitives when the exact amount is unknown or unimportant. She did part of the work. Pro Tip 3/3Context Sensitivity Partitives can change meaning with context; 'some' can imply a small or a large amount. I need some nails for this project.