DICT.TW Dictionary Taiwan

 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