Base

Base or BASE may refer to:

In computing:
 * 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.org Base, OpenOffice.org's database module, also known as ooBase
 * , an HTML element

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

In science:
 * Base (chemistry), a substance that can accept hydrogen ions (protons)
 * Beta-alumina solid electrolyte, a fast ion conductor material
 * Base of the heart, a portion of the heart opposite the apex of the heart
 * An attribute to medication in uncombined form, for example erythromycin base

In other uses:
 * Base (baseball), the first, second, and third base on a baseball diamond
 * Base (company), an international design, communications, audiovisual, copywriting and publishing firm
 * Base (politics), a group of voters who almost always support a single party's candidates
 * Base, Maharashtra, village in India
 * BASE (mobile), a Belgian mobile telecommunications operator
 * Bedini Audio Spectral Enhancer, an audio signal processor used in the early 1990s
 * 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
 * Bible Archaeology Search and Exploration Institute
 * Backward Society Education, a Nepali non-governmental organization.
 * Base, a type of connection on a transistor
 * Base, a position in some cheerleading stunts

People with the surname

 * Rob Base, American rapper