苦情

1. Origins, structure, and basic meaning

• Structure: In 苦情 (くじょう), grievance 苦 and feeling or circumstance 情 combine to denote a complaint.
• Basic usage: 苦情が presents a complaint as arising or being received, while 苦情を makes it the object of stating, hearing, or handling.

2. Common pitfalls and similar expressions

• A complaint raised or handled
  • The focus is a grievance communicated to someone, not only private displeasure.