[ 'frʌntɪə , frʌn'tɪə ]
■ noun
1》 a border separating two countries.
2》 the extreme limit of settled land beyond which lies wilderness.
3》 the extreme limit of understanding or achievement in a particular area.
Derivatives
~less adjective
Origin
ME: from OFr. ~e , based on L. frons , front- 'front'.