月末

1. Origins, structure, and basic meaning

• Structure: 月末 is read げつまつ.
• Basic usage: It refers to the end of a month.

2. Common pitfalls and similar expressions

• Deadline
  • 月末までに sets the end of the month as the deadline for completion.
• Recurring time
  • 月末になると can introduce something that happens whenever the end of the month arrives.