next friend
  至親,摯友;監護人;訴訟代理人
  Next a., superl. of Nigh.
  1. Nearest in place; having no similar object intervening.
  Her princely guest
  Was next her side; in order sat the rest.   --Dryden.
     Fear followed me so hard, that I fled the next way.   --Bunyan.
  2. Nearest in time; as, the next day or hour.
  3. Adjoining in a series; immediately preceding or following in order.
     None could tell whose turn should be the next.   --Gay.
  4. Nearest in degree, quality, rank, right, or relation; as, the next heir was an infant.
     The man is near of kin unto us, one of our next kinsmen.   --Ruth ii. 20.
  Note: ☞ Next is usually followed by to before an object, but to is sometimes omitted.  In such cases next in considered by many grammarians as a preposition.
  Next friend Law, one who represents an infant, a married woman, or any person who can not appear sui juris, in a suit at law.
  next friend
       n : (law) a person who acts on behalf of an infant or disabled
           person