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frontier
Language
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Edit
Pronunciation
change
(
UK
)
IPA
(
key
)
:
/ˈfrʌntɪə/
or
/ˈfrɒntɪə/
or
/ˈfrʌntjə/
or
/ˈfrɒntjə/
(
US
)
IPA
(
key
)
:
/frʌnˈtɪr/
or
/frɑnˈtɪr/
Audio (US)
(
file
)
Hyphenation
: fron‧tier
Noun
change
Singular
frontier
Plural
frontiers
The
frontier
is part of a
country
that is next to another country.
A
frontier
is an area where few or no people live.
Many settlers were killed on the
frontier
during colonial days in America.
Outer space is said to be the last
frontier
.