Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
boundary | Yes | No | No | No |
frontier | Yes | No | No | No |
boundary (noun) | frontier (noun) |
---|---|
the greatest possible degree of something | an undeveloped field of study; a topic inviting research and development |
the line or plane indicating the limit or extent of something | a wilderness at the edge of a settled area of a country |
a line determining the limits of an area | an international boundary or the area (often fortified) immediately inside the boundary |