Base

Base or BASE may refer to:

Brands and enterprises

 * BASE (mobile operator), 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
 * Budapest Aircraft Services, callsign BASE

Computing

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

Mathematics

 * Base of computation, commonly called radix, the number of distinct digits in a positional numeral system
 * Base of a logarithm, the number whose logarithm is $1$
 * Base (exponentiation), the number $b$ in an expression of the form $b^{n}$
 * Base (geometry), a side of a plane figure (for example a triangle) or face of a solid
 * Base (group theory), a sequence of elements not jointly stabilized by any nontrivial group element.
 * Base (topology), a type of generating set for a topological space

Organizations

 * Backward Society Education, a Nepali non-governmental organization
 * BASE (social centre), a self-managed social centre in Bristol, UK
 * Federal Office for the Safety of Nuclear Waste Management, a German federal environmental authority
 * Beaverton Academy of Science and Engineering, in Hillsboro, Oregon, US
 * Bible Archaeology Search and Exploration Institute
 * British Association for Screen Entertainment
 * Brooklyn Academy of Science and the Environment, a high school in New York, US

Science and technology

 * Base (chemistry), a substance that can accept hydrogen ions (protons)
 * Base, an attribute to medication in pure form, for example erythromycin base
 * Base, one of the three terminals of a Bipolar junction transistor
 * BASE experiment, an antiproton experiment at CERN
 * Base pair, a pair of connected nucleotides on complementary DNA and RNA strands
 * Beta-alumina solid electrolyte, a fast ion conductor material
 * Nucleobase, in genetics, the parts of DNA and RNA involved in forming base pairs
 * Base (blockchain), an Ethereum layer 2 blockchain

Social science

 * Base (politics), a group of voters who almost always support a single party's candidates
 * Base (social class), a lower social class
 * Base and superstructure (Marxism), parts of society in Marxist theory

Sports

 * Base (baseball), a station that must be touched by a runner
 * Base, a position in some cheerleading stunts
 * BASE jumping, parachuting or wingsuit flying from a fixed structure or cliff
 * Base, a variant name for the children's game darebase

Other uses

 * Base (character), character in Marvel Comics
 * Base (EP), an album by South Korean singer Kim Jonghyun
 * Base, Maharashtra, a village in India
 * Rob Base, American rapper
 * Base, or binder (material), a material that holds paint or other materials together
 * Base, or foundation (architecture), the lowest and supporting layer of a structure
 * Base, or foundation (cosmetics), a cosmetic applied to the face
 * Base, in heraldry, the lower part of the shield
 * Base, or pedestal, a supporting feature of a statue or other item
 * Cooking base, a concentrated flavouring compound
 * Military base, or non-military base camp, a bivouac which provides shelter, military equipment and personnel