RM

1. Republic of Madagascar (IVR)
2. Resident Magistrate
3. Royal Mail
4. Royal Marines

rm

1. Ream (printing)
2. Room

• fashious
• fashiousness
• fashiousnesses
• fast
• FAST
• fast and furious
• fast and furiously
• fast-and-loose
• fastback
• fastbacks
• fastball
• fastballs
• fast bowler
• fast bowlers
• fast bowling
• fast-breeder reactor
• fast-breeder reactors
• fast by
• fast-day
• fast-days
• fasted
• fasten
• fastened
• Fasten-e'en
• fastener