avail

Noun

• a means of serving
  • of no avail
    
  • there's no help for it
    

Verb

• take or use
  • She helped herself to some of the office supplies
    

• be of use to, be useful to
  • It will avail them to dispose of their booty
    

• use to one's advantage
  • He availed himself of the available resources
    

Related words

• Synonyms: 
  help , service