customer base

: one that purchases a commodity or service

: an individual usually having some specified distinctive trait

: the lower part of a wall, pier, or column considered as a separate architectural feature

: the lower part of a complete architectural design (as of a monument)

: the bottom of something considered as its support : foundation

: to make, form, or serve as a base for

: to find a foundation or basis for : to find a base (see ¹base 3a) for

: of little height

: low in place or position

: bass

: constituting or serving as a base

: of the simplest or most basic design or form : having the form of something before upgrades or customization