| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | knuckle | Western countries | Knuckle cracking is a common habit and considered harmless by many people. | 1 |
| 2 | knuckle | Western countries | Knuckles are used for knocking on doors or tapping on a table to get someone's attention. | 1 |
| 3 | knuckle | Western culture | Knocking on doors using knuckles is a common practice | 1 |