Merriam-Webster trolled a statement United Airlines issued Monday after a passenger was violently dragged off an overbooked flight.

The dictionary company pointed to the use of "volunteer" in the airline's statement. " 'Volunteer' means 'someone who does something without being forced to do it,' " it tweeted.

'Volunteer' means “someone who does something without being forced to do it.” https://t.co/qNAcMyplhZ — Merriam-Webster (@MerriamWebster) April 11, 2017

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“Flight 3411 from Chicago to Louisville was overbooked. After our team looked for volunteers, one customer refused to leave the aircraft voluntarily and law enforcement was asked to come to the gate,” a United spokesman said in a statement. “We apologize for the overbook situation."

The dictionary said searches for the word "volunteer" spiked 1900 percent on Monday.

"Some of the interest in the definition of volunteer may come from the wording of the statement from United, since a person who did not volunteer to leave was then described as refusing 'to leave the aircraft voluntarily'—and subsequently being forced to do it," the dictionary wrote on its website.

Passengers had already boarded the flight at O'Hare International Airport when United asked for volunteers to take a next-day flight to make room for United staff members who needed to board.

The airline first offered $400, then $800, and when none of the passengers volunteered, the airline randomly selected four passengers to leave.

The man who was seen in video being dragged off the plane reportedly refused to leave because he was a doctor who needed to reach his destination to treat patients.