| 100% | CBRADIO | 7 | Communication system for long-haul truckers (Abbr.) |
| 62% | ASL | 3 | Communication system for the gorilla Koko: Abbr. |
| 62% | ASL | 3 | Communication system for the hearing-impaired: Abbr. |
| 61% | ASL | 3 | Communication system for the deaf: Abbr. |
| 61% | ASL | 3 | Communication system for Deaf people: Abbr. |
| 55% | ASL | 3 | Communication system for the hearing-impaired (Abbr.) |
| 51% | BFF | 3 | Buddy for the long haul: Abbr. |
| 48% | SEMI | 4 | Rig for long hauls |
| 48% | ASL | 3 | Communication system for the deaf, for short |
| 48% | INTERCOM | 8 | Talkback communication system for buildings |
| 46% | ASL | 3 | Digital communication system, for short |
| 46% | ASL | 3 | Silent communication system, for short |
| 45% | ASL | 3 | Nonverbal communication system: Abbr. |
| 45% | ASL | 3 | Soundless communication system: Abbr. |
| 45% | ASL | 3 | "Handy" communication system: Abbr. |
| 45% | ASL | 3 | Silent communication system: Abbr. |
| 45% | ASL | 3 | Visual communication system: Abbr. |
| 45% | ASL | 3 | Handy communication system: Abbr. |
| 45% | ASL | 3 | Gestured communication system: Abbr. |
| 45% | ASL | 3 | Manual communication system: Abbr. |
| 45% | ASL | 3 | Communication system that includes fingerspelling, for short |
| 44% | ASL | 3 | Gestures-based communication system: Abbr. |
| 44% | ASL | 3 | Hand-based communication system: Abbr. |
| 44% | ASL | 3 | Gesture-based communication system: Abbr. |
| 44% | ASL | 3 | Hand-y communication system: Abbr. |
| 44% | ASL | 3 | Communication system that doesn't involve speaking: Abbr. |
| 44% | ASL | 3 | Communication system pioneered by Thomas Gallaudet, for short |
| 44% | ASL | 3 | Communication system used by Deaf people: Abbr. |
| 44% | ASL | 3 | Deaf community's communication system: Abbr. |
| 44% | ASL | 3 | Hand gestures-based communication system: Abbr. |