| secret for | 4.87 | It was secret for a long time. | ||
| secret until | 3.62 | Israel kept the affair secret until Thursday. | ||
| secret by | 2.24 | The amounts contributed are kept secret by Dole. | ||
| secret of | 1.51 | Amir made little secret of his beliefs. | ||
| secret in | 1.32 | Experts call it the best kept secret in medicine. | ||
| secret because_of | 0.59 | The operation was kept secret because of ongoing police investigations. | ||
| secret for_fear_of | 0.39 | Luther had learned to read and write, but kept it secret for fear of punishment. | ||
| secret as | 0.33 | But the details had been kept secret as private taxpayer information. | ||
| secret to | 0.33 | But he always kept one secret to himself. | ||
| secret under | 0.33 | Moreover, even these accreditation reports are kept secret under state law. |