Example Sentences
"Pioneers pushed America's frontier westward throughout the 19th century."
"Daniel Boone was famous for exploring the frontier of Kentucky."
Synonyms & Related Terms
Quick Check
Which best describes the meaning of frontier?
Study Tips
To remember frontier, try writing it in a sentence of your own. Connect it to something you already know about history & social studies.
Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.