| Headword | Part of Speech | Update Type |
| camel worm | n | Revised Entry |
| can to can’t, from | adv phr | New Entry |
| can’t see | n | Revised Entry |
| cat boil | n | Revised Entry |
| catbird winter | n | New Entry |
| cautch | n | Revised Entry |
| cave | n | Revised Senses |
| cave | v | Revised Entry |
| caving | adv | Revised Entry |
| chalk-eye | n | New Sense |
| chalk-eye | v | New Sense, Revised Sense |
| chicken choker | n | New Entry |
| doodlebug | n | Revised Senses |
| jack | n1 | Revised Sense |