English vocabulary and translations (See all our English vocabulary translation)
Want to improve your English? Try our online English lessons for free.
(the country has closed its) frontiers: (the country has closed its) borders, boundaries with other countries
- "Jean : Space, the final frontier."
Still having difficulties with 'Frontier'? Want to improve your English? Try our online English lessons and receive a free level assessment.
Do you have smart way of remembering 'Frontier'? Share it with us!