協力

1. Origins, structure, and basic meaning

• Structure: 協力, read きょうりょく, is cooperation or collaboration toward a shared result.
• Basic usage: 班が協力して作る describes groups acting together; 皆の協力のおかげで credits cooperation for early completion.

2. Common pitfalls and similar expressions

• Joint action and credited cause
  • して links collaboration to the task, while のおかげで presents it as the positive cause of the outcome.