What it means
Standing is a party's legal right to bring a proceeding, based on having a sufficient interest in the outcome. Generally a person must show their own rights or interests are affected, rather than acting on a complaint that belongs to someone else. If a party lacks standing, a court may dismiss the case regardless of its merits. The required interest varies between private disputes and public-interest or administrative matters.
How it's used
The court found the neighbour had standing to challenge the development because his property was directly affected.