労働

1. Origins, structure, and basic meaning

• Structure: The social and economic noun 労働 (ろうどう) denotes physical or mental labor performed as work.
• Basic usage: It combines with duration in 長時間の労働 and can name the hardship experienced through working.

2. Common pitfalls and similar expressions

• Labor requiring effort
  • It focuses on the act and burden of work requiring time and effort rather than on a job title or employment status.