the world > action or operation > advantage > expediency > [verb (transitive)] > serve for or as (4)
To perform or fulfil a specified function; to take the place of some specified means or agency. intransitive. To be of use as, to be able to be used…
To have a definite use or function; to answer to a purpose; to bring about or be conducive to the… intransitive. To be usable or available for a…
intransitive. To be suitable, useful, or advantageous; to avail, help; to serve, suffice (for). Const. dative of person.
intransitive. With as. To do the work of, to serve as; to perform a particular function.