Worship is the act of offering devotion and praise to a deity or deities. It is most often used in reference to formal religious services, but also applies to private prayer and other acts done to honor or revere the sacred. Many evangelical Protestants have a tendency to use it specifically in reference to music – especially contemporary praise music – sung in church. Thus, the leader of the contemporary singing group may appear in the church bulletin as “praise and worship leader.”
REFERENCE: Religion Stylebook