Tom and Jerry have been arch rivals since childhood.

The arch-rivals faced off in the championship game.

Manchester United and Manchester City are arch-rivals in football.

The arch rivals faced off in the championship game.

The arch rivalries between the two teams have been intense for years.

The arch-rivalry between the two teams is intense.

The arch-rivalries between the two teams have been intense for years.

The arch rivalry between the two teams is intense.

The micro-architecture of the new processor allows for faster data processing.

There are many architectural patterns to choose from when designing a software system.