The '50s progression.

A room, especially in a gym, sports center, school, swimming pool, etc, designed for people to change their clothes.

(sports or figuratively) Critical and having the potential to alter the overall outcome.

An impermeable pad that babies are placed on while changing their diapers.

plural of changing room

That contributes to climate change

(usually preceded by the) A ceremony during which the soldiers or other officials guarding a major government building or state residence, especially Buckingham Palace in England, are replaced by a new shift.

present participle of short change

present participle of short-change

The act of exchanging currency of one type for another for a fee or percentage.