frenemy /frenˈi-mi/

1. A friend who is also a rival
2. An enemy who masquerades as a friend

• knock back
• knock-back
• knock-backs
• knock cold
• knock copy
• knock down
• knock-down
• knock-downs
• knocked
• knocked-down
• knocker
• knockers
• knocker-up
• knocker-ups
• knock-for-knock agreement
• knock-for-knock policy
• knock for six
• knocking
• knocking copies
• knocking copy
• knockings
• knocking shop
• knocking-shop
• knocking shops
• knocking-shops