Knock

The company's profits took a knock due to increased competition.

The cancellation of the flight was a knock to our travel plans.

He received a knock on the head during the fight.

The mechanic used a mallet to give the engine a solid knock.

The knock of the hammer signaled the start of the construction.

The student's knock on the teacher's grading system sparked a class discussion.

The sound of a knock startled me awake in the middle of the night.

The decrease in customer satisfaction was a knock to the reputation of the company.

I gave the car engine a knock to fix the problem.

The knock of the ball against the bat echoed through the stadium.

The reduction in funding had a knock on the research project's progress.

She felt a knock on her shoulder, and turned around to see who it was.