1. A series of hills or mountains
   - range, mountain range, range of mountains, chain, mountain chain

Type of: formation, geological formation

• mail
• mail call
• mail car
• mail carrier
• mail clerk
• mail fraud
• mail merge
• mail order
• mail out
• mail pouch
• mail service
• mail slot
• mail train
• mail-cheeked
• mail-clad
• mail-order buying
• mailbag
• mailboat
• mailbox
• maildrop
• mailed
• mailer
• mailing
• mailing address
• mailing list