serve a purpose, role, or function
do duty or hold offices; serve in a specific function
contribute or conduce to
be used by; as of a utility
provide (usually but not necessarily food)
help to some food; help with food or drink
devote (part of) one's life or efforts to, as of countries, institutions, or ideas
promote, benefit, or be useful or beneficial to
spatially or metaphorically from a lower to a higher position
being or moving higher in position or greater in some value; being above a former position or level
