The term 'SWEET CITRUS FRUIT' can be solved by the 6-letter word 'ORANGE'. The ORANGE is a sweet citrus fruit that is widely cultivated in tropical and subtropical climates for its sweet, edible fruit. It is a hybrid between pomelo and mandarin and is a member of the citrus family. The ORANGE is a popular fruit due to its sweet taste and high nutritional value. It is rich in vitamin C, fiber, and other essential nutrients.