1. In complete agreement; unanimously. 2. With no exception: They objected as one man. Man is used in the nominative case only; for the oblique cases, forms of the pronoun einer are used; for example, Man' kann nicht immer tun, was einen glücklich macht (“One cannot always do what makes one happy”). Definition of MAN in the Definitions.net dictionary. Meaning of MAN. What does MAN mean? Information and translations of MAN in the most comprehensive dictionary definitions resource on the web. Man definition: A human or an adult male human belonging to a specific occupation, group, nationality, or other category. Often used in combination. Male anatomy is distinguished from female anatomy by the male reproductive system, which includes the testicles, sperm ducts, prostate gland and epididymides, and penis. Secondary sex characteristics include a narrower pelvis and hips, and smaller breasts and nipples. The combining form -man is used like a suffix meaning “man,” most often to indicate a man who performs a particular job or function. It is often used in a variety of technical and everyday terms. Traditionally, we use man to refer to all human beings, male and female, usually in contrast with other animals. However, many people consider this to be sexist, so it is better to use a different expression, such as human beings: … Man (interjection): Used to express excitement, admiration, or frustration (informal). Following these definitions, man refers primarily to an adult male human in everyday context, but it also carries different meanings in various fields such as business, military, and technology, emphasizing its versatility. If you say that a man is someone's man, you mean that he always supports that person or does what they want. The meaning of MAN is an individual human; especially : an adult male human. How to use man in a sentence.