An election held in a single electoral district to fill a vacancy in the House of Assembly.

an election held to fill a vacancy in a provincial electoral district, municipality or rural community.

A local election held to fill a suddenly vacated (single member voting) seat due to death, resignation etc.     see also Casual Vacancy

Election which is held for one seat in Parliament only, whenever there is a vacancy (for instance, if a Member of Parliament resigns or dies). In the YM episode The Death List the purpose of the Inter [..]

a special election held to fill the seat of a Member of the House of Representatives who has died or resigned

These are held when the Member of Parliament who represents that electorate retires or dies, or can no longer hold office. They occur before the MP's elected term is complete.

An election held between general elections, usually because the sitting MP has died or resigned.

An election held during a parliamentary term when the seat of an electorate MP becomes vacant. For example, when a member dies or resigns.

An election held in a particular electoral district to fill a vacancy in the House of Commons at any time other than during a general election. Several by-elections may be held on the same day.

An election held between general elections to fill an empty seat in the Legislative Assembly. A by-election is triggered when an MLA resigns, is disqualified from sitting, dies, or is successfully recalled. More than one by-election can be held on the same day. (Constitution Act, s. 35; Election Act, s. 1, 25; Recall and Initiative Act, s. 26-28)

An election held to fill a vacancy that occurs between general elections. See also casual vacancy.

An election in an electorate seat to fill a vacancy that arises between general elections.

By-elections are elections that take place in individual constituencies following the resignation, death, bankruptcy, 'lunacy' or elevation to peerage of the MP for that constituency.

Elections held between general elections to replace members who have died or have resigned from the Legislative Assembly.

The method of filling a constituency vacancy arising during a parliamentary session.

By-election is an election held to fill the vacancy in a political office. It is also known as special election in the U.S and Philippines. This election is conducted when any member of the political [..]

The process used generally in single member electorates to fill a casual vacancy. This is not used in the ACT. (see casual vacancy)

A by-election is an election in a single district to fill a casual vacancy caused by the departure of a sitting Member of Parliament before the Member's term expires.

(n) a special election between regular elections

An election in a single electorate in between general elections. Between 1901 and 2007, there were 141 by-elections. Of these, 67 were caused by the death of an MP, 68 as a result of resignation, five [..]

a special election held to fill a political office that has become vacant between general elections.

  The death, resignation or disqualification of a member of parliament creates a casual vacancy in the chamber.  Such vacancies are filled by holding a special election called a by-election in the electoral district whose seat has become vacant.