to avoid ambiguity
51Out(Fn) — In mathematics, Out(Fn) is the outer automorphism group of a free group on n generators. These groups play an important role in geometric group theory. Contents 1 Outer space 1.1 Definition 1.2 Connection to length fun …
52comma — There is much variation in the use of the comma in print and in everyday writing. Essentially, its role is to give detail to the structure of sentences, especially longer ones, and to make their meaning clear by marking off words that either do… …
53hyphen — hyphen, hyphenate, verbs. Both words mean ‘to spell (a word or phrase) with a hyphen’. This book uses hyphen, following the practice of the successive OED editors C. T. Onions and R. W. Burchfield, although hyphenate is more common in general… …
54Equal temperament — is a musical temperament, or a system of tuning in which every pair of adjacent notes has an identical frequency ratio. In equal temperament tunings an interval mdash; usually the octave mdash; is divided into a series of equal steps (equal… …
55Native Americans in the United States — This article is about the indigenous people of the United States. For other indigenous people see Indigenous peoples by geographic regions Native Americans …
56Conodont — Conodonts Temporal range: 495–199.6 Ma …
57Nickname — Short name redirects here. For the term as it applies to legislation, see short title. Map of the United States showing the state nicknames as hogs. Lithograph by Mackwitz, St. Louis, 1884 …
58Serial number — from an identity document A serial number is a unique number assigned for identification which varies from its successor or predecessor by a fixed discrete integer value. Common usage has expanded the term to refer to any unique alphanumeric… …
59Jèrriais — Spoken in  Jersey  Sark Native …
60Annuity (European financial arrangements) — An annuity can be defined as a contract which provides an income stream in return for an initial payment.Immediate annuityAn immediate annuity is an annuity for which the income stream begins at a time after the initial payment which is less than …
