boundary

A line marking the limits of an area; a limit of a subject or domain; a personal or professional limit one does not wish to cross.

• bounded/ˈbaʊndɪd/(adj)有界的
• unbounded/ʌnˈbaʊndɪd/(adj)无限的
• bound/baʊnd/(v)限制

• set boundaries
• push the boundaries
• professional boundary
• boundary between
• blur the boundary
• boundary conditions

1. 1.It is important to establish clear boundaries at the outset so that everyone understands what falls within the scope of the project.
2. 2.The research pushes the boundaries of what was previously thought possible in the field.

• border/ˈbɔːdə/— a line separating areas
• limit/ˈlɪmɪt/— a point beyond which something cannot go
• perimeter/pəˈrɪmɪtə/— the outer edge of an area

from Anglo-French "boundarie", from "bound" (a limit), from Old French "bodne"