Spanish words that start with RR?

A Word in spanish never starts with RR... there is a rule that says that if there is an RR sound at the beginning of a Word, only one R should be written. For example...

Roedor

Ratas (rats)

Rueda (wheel)

Ramera (shirt)

Rosado (pink)

Reir (to laugh)

Rapido (fast)

Rayo (lightning)

Repartir (give out)