申し込み

1. Origins, structure, and basic meaning

• Structure: 申し込み(もうしこみ) means an application or registration expressing a wish to participate or use something.
• Basic usage: It is used for class application deadlines or the number of event registrations.

2. Common pitfalls and similar expressions

• The application noun and verb
  • 申し込み is the noun for an application, while 申し込む(もうしこむ) is the verb meaning to apply.
• まで for a deadline
  • 金曜日まで means by Friday, giving the application deadline.