frontier
6 synonyms for frontier, grouped by meaning and by how common each one is.
Noun — The border area between two countries, or the edge of settled and unsettled land.
Synonyms
Everyday swaps
Common words most readers know — safe in any writing.
Less common
Still standard English, but they carry more weight.
Rare, literary or technical
Precise, but they will stand out — check the sense before using one.
How to use frontier
The word patterns that sound natural to a native speaker.
Etymology
From Old French frontiere, based on Latin frons ("front").
Full origin of frontier →