Example Sentences
"Letters written by soldiers during the Civil War are primary sources."
"Photographs and diaries are valuable primary sources for historians."
Synonyms & Related Terms
Quick Check
Which best describes the meaning of primary source?
Study Tips
To remember primary source, 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.