border

Noun

• a strip forming the outer edge of something
  • the rug had a wide blue border
    

• a decorative recessed or relieved surface on an edge

• the boundary of a surface

• the boundary line or the area immediately inside the boundary

• a line that indicates a boundary

Verb

• lie adjacent to another or share a boundary
  • Canada adjoins the U.S.
    
  • England marches with Scotland
    

• provide with a border or edge
  • edge the tablecloth with embroidery
    

• enclose in or as if in a frame
  • frame a picture
    

• form the boundary of; be contiguous to

• extend on all sides of simultaneously; encircle
  • The forest surrounds my property
    

Related words

• Synonyms: 
  molding , moulding , edge , margin , perimeter , boundary line , borderline , delimitation , mete , adjoin , abut , march , butt , butt against , butt on , frame , frame in , bound , surround , environ , ring , skirt