frontier Definition in the Cambridge Learner’s Dictionary Cambridge dictionaries logo
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Definition of “frontier” - Learner’s Dictionary

frontier

noun     /frʌnˈtɪər/
[C] a line or border between two countriesTerritorial boundariesCountry and nationContinents and regions of the worldCountry names
the frontiers of sth
the limits of what is known or what has been done before in an area of knowledge or activity: the frontiers of science and technologyDescribing the leading position
(Definition of frontier from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website
Avoiding common errors with the word enough.
Avoiding common errors with the word enough.
by ,
May 25, 2016
by Liz Walter Enough is a very common word, but it is easy to make mistakes with it. You need to be careful about its position in a sentence, and the prepositions or verb patterns that come after it. I’ll start with the position of enough in the sentence. When we use it with a noun,

Read More 

Word of the Day

ray

a narrow beam of light, heat, etc. travelling in a straight line from its place of origin

Word of the Day

convo noun
convo noun
May 23, 2016
informal a conversation The convo around concussions mostly focuses on guys who play football, but Chastain thinks that this whole thing could be a headache for women too.

Read More