缺口 (quē kǒu): nick; jag; gap; shortfall

After the earthquake, an obvious breach appeared in the dam, and rescue workers are racing against time to block it with sandbags.

This ceramic bowl accidentally got a chip during transport. Although it can still be used, it's no longer worth much.

There is a three-month gap in his resume, and the interviewer repeatedly asked what he was doing during that time.

A huge shortfall has appeared in the company's cash flow. If investment isn't found soon, it may not even be able to pay salaries next month.

A breach was torn open in the enemy's defense line, and our army took the opportunity to break through quickly and advance deep into enemy territory.