Meaning & Definition of Adjoin in English

1. Lie adjacent to another or share a boundary

• "Canada adjoins the u.s."

• "England marches with scotland"

2. Be in direct physical contact with

• Make contact

• "The two buildings touch"

• "Their hands touched"

• "The wire must not contact the metal cover"

• "The surfaces contact at this point"

3. Attach or add

• "I adjoin a copy of your my lawyer's letter"