apec

As a noun base

is something from which other things extend; a foundation.

As a verb base

is to give as its foundation or starting point; to lay the foundation of.

As an adjective base

is low in height; short.

As an acronym base

is alternative form of BASE|lang=en.

As a proper noun APEC is

a regional trade agreement between the Australia, Canada, Chile, China, Japan, Mexico, New Zealand, Papua New Guinea, Peru, Russia, South Korea, Taiwan (under the name Chinese Taipei), Hong Kong, US and members of ASEAN.