| 1. | to admit to be real or true; recognize the existence, truth, or fact of: to acknowledge one's mistakes. |
| 2. | to show or express recognition or realization of: to acknowledge an acquaintance by nodding. |
| 3. | to recognize the authority, validity, or claims of: The students acknowledged the authority of the student council. |
| 4. | to show or express appreciation or gratitude for: to acknowledge a favor. |
| 5. | to indicate or make known the receipt of: to acknowledge a letter. |
| 6. | to take notice of or reply to: to acknowledge a greeting. |
| 7. | Law. to confirm as binding or of legal force: to acknowledge a deed. |
