acquaintance

"My knowledge of history helped me understand the current political situation better. "

"He is a student of life."

"My friendship with Sarah has lasted for many years. "

"Are you suggesting that I killed my wife?"

"The website's HTML file uses several includes for the header and footer, allowing for consistent design across all pages. "

"My teacher fostered a classroom atmosphere of intimacy, encouraging students to share their ideas openly. "

"I know of the man; but have no acquaintance with him."

"The online personal for finding a book club partner was very popular among students. "

"Originally, this paper was white, but over the years it has yellowed with age."

"I think you should acquaint him with the realities of the situation."

"The students, collectively, decided to postpone the project until next week. "

"The guard blew his whistle to indicate imminent departure."