base out Definition

base¹
noun

1. The lowest part or bottom; the part which supports something or on which something stands.

Thesaurus: foundation, groundwork, bed, pedestal, substructure, support, underpinning, infrastructure, root, footing.
2. The origin, root or foundation of something.

Thesaurus: basis, principle, source, heart, core, authority, origin, root, foundation.
3. The headquarters or centre of activity or operations.

Thesaurus: headquarters, camp, station, terminal, garrison, billet, centre, depot, dock, harbour, anchorage, site.
4. A starting point.
5. The main part of a mixture.

Example: Rice is the base of this dish
6. chem.
Any of a group of chemical compounds that can neutralize an acid to form a salt and water.
7. baseball.
Any one of four fixed points on the pitch which players run between.
8. math.
In a numerical system: the number of different symbols used, eg in the binary number system the base is two, because only the symbols 0 and 1 are used.
9. math.
In logarithms: the number that, when raised to a certain power (see power noun 12), has a logarithm equal in value to that power.
10. geom.
The line or surface, usually horizontal, on which a geometric figure rests.

verb

based, basing
1. To make or form a base for something or someone.

Idiom: get to first base (make first base)

See under first.

Idiom: off base

(S)
colloq
Wrong; mistaken.

Etymology: 14c: French, from Latin basis pedestal.

Phrasal Verb: base someone or something in or at somewhere

To post or place them, or give it a headquarters or centre of operations, in or at a specified place.

Phrasal Verb: base something on something

To use it as the basis for something; to found or establish (an argument, etc) on it.

Phrasal Verb: base out

Said of prices, etc: to bottom out.