/ ˈsɜːvə(r); NAmE ˈsɜːrv-/ noun
1.
( computing ) a computer program that controls or supplies information to several computers connected in a network; the main computer on which this program is run
2.
( sport ) a player who is serving, for example in tennis
3.
[ usually pl. ] a kitchen utensil (= tool) used for putting food onto sb's plate :
salad servers
4.
( NAmE ) a person who serves food in a restaurant; a waiter or waitress
5.
a person who helps a priest during a church service