Base

Base or BASE may refer to:

Mathematics

Base (geometry), a side of a plane figure (for example a triangle) or face of a solid
Base (group theory), a sequence of distinct elements of a set
Base (exponentiation), the number b in an expression of the form bⁿ, also the base of logarithms
Base (topology), a topological space
Radix or base, the number of distinct digits in a positional numeral system

Base (chemistry), a substance that can accept hydrogen ions (protons)
Beta-alumina solid electrolyte, a fast ion conductor material
An attribute to medication in uncombined form, for example erythromycin base
Base pair, a pair of connected nucleotides on complementary DNA and RNA strands
Nucleobase, in genetics, the parts of DNA and RNA involved in forming base pairs
Base, one of the three terminals of a Bipolar junction transistor
BASE experiment, an antiproton experiment at CERN

BASE (search engine), Bielefeld Academic Search Engine
Basically Available, Soft state, Eventual consistency (BASE), a consistency model
Google Base, an online database provided by Google
OpenOffice Base, OpenOffice.org's database module, also known as ooBase
LibreOffice Base, LibreOffice's database module
<base></base>, an HTML element

Base (mobile telephony provider), a Belgian mobile telecommunications operator
Base CRM, an enterprise software company founded in 2009 with offices in Mountain View and Kraków, Poland
Base Design, an international design, communications, audiovisual, copywriting and publishing firm
Base FX, a visual effects and animation company founded in 2006 with studios in Beijing, Wuxi and Xiamen, China
Backward Society Education, a Nepali non-governmental organization
Bible Archaeology Search and Exploration Institute
Brooklyn Academy of Science and the Environment, high school in Brooklyn, New York

Base (baseball), the first, second, and third base on a baseball diamond
Base (politics), a group of voters who almost always support a single party's candidates
Base, Maharashtra, village in India
Cooking base, a concentrated flavouring compound
Binder (material), a material that holds paint or other materials together
Foundation (cosmetics), a cosmetic applied to the face
Foundation (architecture), the lowest and supporting layer of a structure
Military base, or non-military base, which provides shelter, military equipment and personnel
Pedestal, a supporting feature of a statue or other item
Budapest Aircraft Services' callsign
Base and superstructure (Marxism)
BASE jumping
Base, a position in some cheerleading stunts
Base in heraldry: the lower part of the shield
Base (EP), an album by South Korean singer Kim Jonghyun
Base (social class), a lower social class