| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | fiber optics | Korea | Used for high-quality audio transmission in audio equipment | 1 |
| 2 | optical fiber | South Korea | Integrated into high-speed public transportation and communication systems | 1 |
| 3 | optical shop | Korea | A place where customers are provided with personalized service to help them choose the perfect frames, with a focus on fashion and style. | 1 |
| 4 | optical shop | South Korea | Optical shops often offer a variety of fashionable and high-tech eyeglasses, and customers prioritize brand and style when choosing eyewear. | 1 |
| 5 | optical shop | South Korea | Also a popular place to purchase fashionable non-prescription eyewear as a fashion accessory. | 1 |