| Anecdotal knowledge |
| Acknowledged an ovation |
| Pacific Ocean discoverer |
| An 1898 discovery. |
| Tummy sound — discover (an illicit activity) |
| Acknowledges responsibility for |
| Archaeologist's discovery |
| Acknowledged expert |
| Acknowledge defeat |
| Acknowledges performers |
| African lake discovered by Livingstone |
| Acknowledged mistakes |
| Italian discoverer of six comets |
| Acknowledges |
| Ancient knowledge |
| Comet co-discoverer who shares his name with a father-and-son acting pair |
| Acknowledges nonverbally |
| Acknowledged |
| Dusting discovery |
| Acknowledge, non-verbally |
| Body of traditional knowledge |
| Acknowledgers |
| Its motto is "Cor prudentis possidebit scientiam" ("The wise heart seeks knowledge") |
| Acknowledged on Facebook |
| Lacking knowledge |
| Acknowledges silently |
| Acknowledgement from a ticket agent? |
| Acknowledge openly |
| Acknowledges openly |
| Acknowledge mistletoe overhead |