Definitions of staff:

• noun:   a strong rod or stick with a specialized utilitarian purpose

  Example: "He walked with the help of a wooden staff"

• noun:   (music) the system of five horizontal lines on which the musical notes are written
• noun:   a rod carried as a symbol
• noun:   the body of teachers and administrators at a school

  Example: "The dean addressed the letter to the entire staff of the university"

• noun:   personnel who assist their superior in carrying out an assigned task

  Example: "The hospital has an excellent nursing staff"

• noun:   building material consisting of plaster and hair; used to cover external surfaces of temporary structure (as at an exposition) or for decoration
• verb:   provide with staff

  Example: "This position is not always staffed"

• verb:   serve on the staff of

  Example: "The two men staff the reception desk"

• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #14173)