Main entry: help, avail, service
Definition: a means of serving
Usage: of no avail; there's no help for it
Main entry: avail
Definition: use to one's advantage
Usage: He availed himself of the available resources
Definition: take or use
Usage: She helped herself to some of the office supplies
Main entry: avail
Definition: be of use to, be useful to
Usage: It will avail them to dispose of their booty