** For every non-empty set S there is a binary operation defined on S that makes it a group.

** The Nielsen – Schreier theorem, that every subgroup of a free group is free.

** In topology, morphisms between topological spaces are called continuous maps, and an automorphism of a topological space is a homeomorphism of the space to itself, or self-homeomorphism ( see homeomorphism group ).

** Terminology of the British Isles, discusses the sometimes ambiguous or contentious names for parts of the island group

** The B-52's ( album ), an album by the eponymous group

** School band, a group of student musicians who rehearse and perform instrumental music together

** Marching band, a group of performers that consist of instrumental musicians who generally perform outdoors and incorporate some type of marching ( and possibly other movements ) with their musical performance

** Han Chinese, the dominant ethnic group in mainland China, Taiwan and Singapore

** the exceptional and twisted groups of Lie type ( including the Tits group ).

** Religion and blood group with RH factor

** Religion ( or " NRE " if none ) and blood group with RH factor

** Blood group with RH factor

** First and middle initials and suffix ; blood group

** Social Security number with no dashes or spaces followed immediately by " USN ", space, blood group

** Blood group

** Fermentative hydrogen production, the fermentative conversion of organic substrate to biohydrogen manifested by a diverse group of bacteria

** The Pferdestärke PS ( German translation of horsepower ) is a name for a group of similar power measurements used in Germany around the end of the 19th century, all of about one metric horsepower in size.

** Propithecus diadema group

** Propithecus verreauxi group

** Parabolic induction: a method of constructing group representations of a reductive group from representations of its parabolic subgroups.

** five lectures, heard by the group, as blip. tv videos

** Kuru ( archaeology ), an Indo-Aryan ethnic group

** Order † Sparassodonta ( formerly viewed as marsupials, now as a sister group of metatherians )

Diagnosis-related group ( DRG ) is a system to classify hospital cases into one of originally 467 groups.

cs: Diagnosis-related group

it: Diagnosis-related group

* Diagnosis-related group, a system to classify hospital cases