震動

1. Origins, structure, and basic meaning

• Structure: 震動(しんどう) means trembling or shaking of an object.
• Basic usage: It describes shaking transmitted from construction or vibration felt in a machine.

2. Common pitfalls and similar expressions

• Overlap with 振動
  • 振動(しんどう) is widely used for recurring vibration in contexts such as machinery or sound. This entry's 震動 also describes construction or machine vibration, so their uses overlap in such contexts.