| Answer | Crossword Clue |
|---|---|
| signed | to convey (a message) in sign language |
| sign | to convey (a message) in sign language |
| signs | to convey (a message) in sign language |
| telegraphing | Convey (an intentional or unconscious message), esp. with facial expression or body language |
| telegraphed | Convey (an intentional or unconscious message), esp. with facial expression or body language |
| WASHOE | First ape trained to communicate with humans in sign language |
