D defs.my
Entry 1 sense Webster, 1913

Usefulness

· Use·ful·ness · IPA /ˈjuːsfəlnəs/
01 n. The quality or state of being useful; utility; serviceableness; advantage.
  1. 1.
    The quality or state of being useful; utility; serviceableness; advantage.
Syn. Utility; value; profit. See Utility.