The term QUA is a two-letter acronym that stands for 'QUANTITY Unit of Measurement'. It is used to describe the AMOUNT of a particular item or material that is being measured. This term is often used in the context of manufacturing, where it is used to measure the QUANTITY of a particular item or material that is needed for a specific job. In the context of crosswords, QUA is often used AS a clue for words such AS 'AMOUNT' or 'QUANTITY'.