realm /relm/, obsolete reame /rēm/

1. A kingdom
2. A domain, province, region
3. A field of study or sphere of action

• air-pump
• air-pumps
• air quotes
• air rage
• air rages
• air-raid
• air-raids
• air-rail
• air-rails
• air rifle
• air rifles
• airs
• air-sac
• air-sacs
• airs and graces
• Air Scout
• airscrew
• airscrews
• air-sea rescue
• airshaft
• airshafts
• airship
• airships
• air shot
• air shots