“Her interjection of sheer disbelief echoed through the room, leaving everyone stunned.”

“His speech was interspersed with the odd interjection of a question here and there.”

“When a person asking a question chooses to make an unnecessary and offensive remark, he is inviting an interjection at that point.”

“The first two rounds of debating were held in the Oxford style where each team of three students had one speaking for the motion, against the motion and as an interjector.”

“I laughed at their jokes, acknowledging their comments with interjections of approval.”

“Mark Liberman has an interesting post over at Language Log about the spelling of interjections and onomatopoetic words in comic strips.”

“This is back bedroom electronica at its best, full of big chunky breakbeats, Radiophonic Workshop bleepy things and dirty vocoder interjections.”