(Britain, transport) A special bus service which replaces a train service when engineering work is carried out, or when the train service is temporarily suspended for other reasons such as flooding, track damage etc.

plural of rail replacement service

(UK, transport) Synonym of bus replacement service.

(politics, racism, social) A conspiracy theory based on white supremacist ideology that there is a plot to diminish the influence of white people through the immigration of visible minorities and demographics.

Synonym of white replacement theory

(railways) A pair of iron plates fitting over the rails, used as a bridge to replace on the track derailed railway stock.

plural of replacing switch

(baseball) A statistical measure which evaluates the relative performance of a batter or pitcher compared to a hypothetical replacement player of average fielding skill and below average hitting or pitching.

That which is replaced.

plural of replacee