base >> /beɪs/
Definition: [transitive verb] Have as the foundation for (something); use as a point from which (something) can develop.
Example: the film is based on a novel by Pat Conroy
Definition: [transitive verb] Situate as the center of operations.
Example: a London-based band
Definition: [noun] The lowest part or edge of something, especially the part on which it rests or is supported.
Example: she sat down at the base of a tree
Definition: [noun] A conceptual structure or entity on which something draws or depends.
Example: the town's economic base collapsed
Definition: [noun] A place used as a center of operations by the armed forces or others; a headquarters.
Example: the corporal headed back to base
Definition: [noun] A main or important element or ingredient to which other things are added.
Example: soaps with a vegetable oil base
Definition: [noun] A substance capable of reacting with an acid to form a salt and water, or (more broadly) of accepting or neutralizing hydrogen ions.
Example: Nitric acid reacted with a base will give the nitrate of the salt and water.
Definition: [noun] The middle part of a bipolar transistor, separating the emitter from the collector.
Example: Transistors are composed of three parts - a base, a collector, and an emitter.
Definition: [noun] The root or stem of a word or a derivative.
Example: The children had to say the base of a suffixed word pronounced by the experimenter.
Definition: [noun] A number used as the basis of a numeration scale.
Example: Some historians believe that the Babylonian base 60 place-value system was transmitted to the Indians via the Greeks.
Definition: [noun] One of the four stations that must be reached in turn to score a run.
Example: Four different times I switched over to see the bases loaded, scoring I believe a total of one run.