| new concept | 18.04 | New concept. | ||
| basic concept | 6.06 | Such a basic concept. | ||
| whole concept | 5.33 | He understood the whole concept. | ||
| abstract concept | 3.16 | He finds it hard to grasp abstract concepts. | ||
| very concept | 3.03 | It is the very concept of variability. | ||
| original concept | 2.63 | We had an original concept. | ||
| simple concept | 2.57 | It is a simple concept. | ||
| same concept | 2.50 | The same concepts. | ||
| foreign concept | 2.37 | Defense was a foreign concept. | ||
| different concept | 2.24 | Cats have a different concept of work. | ||
| novel concept | 2.24 | Novel concept. | ||
| alien concept | 1.65 | Paved roads and mail deliveries are alien concepts. | ||
| similar concept | 1.58 | Appropriation and obtaining are similar concepts. | ||
| difficult concept | 1.51 | This is not a difficult concept. | ||
| general concept | 1.45 | Section I presents the general concepts used by him. | ||
| important concept | 1.45 | Duality is an important concept. | ||
| such concept | 1.45 | Such a concept. | ||
| key concept | 1.38 | For Lind, similarity is a key concept. | ||
| western concept | 1.38 | According to him, the western concepts of town planning divides the town into zones. | ||
| marketing concept | 1.32 | Next came a marketing concept. |