informalTranslate number one | into Italian
1oneself:you must look after number one 2a person or thing that is the best or the most important in an activity or area:businesses that were number one in their markets a best-selling record or book:an album featuring seventeen top movie themes and six number ones 3used euphemistically to refer to urine, especially in reference to children. 4a lieutenant junior grade in the navy or the coast guard. 5 (or number two, etc.) the shortest (or next shortest, etc.) men’s haircut produced with electric hair clippers.
most important or prevalent:a number-one priority best-selling:a number-one album