| Alb. | shushurimë | murmur |
| Ital.: Giul. | sisurro | id. |
| Ital. | susurro | id. (l. susurrus) |
| Franç. | sizerin | Siskin, 417 |
| Ital.nord | sisarin et var. | Song Thrush, 339 |
| Prov. | cézèro | id. |
| Ital.reg. | castrice cesarina | Red-backed Shrike, 326 |
| Ukr. | cesarka et var. | Guineafowl, 6 |
| Roman. | tâtarcâ | Guineafowl, 6 |
| Bielor. | cecjaruSnik | Great Bustard, 135 |
| Pol. | cicierz et var. | Black Grouse, 8 |
| Alb. | cicerin | warbling |
| Aroman. | ciuciur | to whisper |
| Sbc. | çuçoriti | to warble |
| Sbc. | cicur, cincur etc. | Skylark, 297; Great Tit, 390 |
| Bulg. | cuculiga | Skylark, 297 |
| Sbc. | cucurin et var. | Black-headed Bunting, 440 |
| Roman. | titirez | rattle |
| Roman. | céceritâ | Whitethroat, 362 |
| Ital.nord | cicciarina, cacarelu | Whitethroat, 362 |
| Cat. | xixinar | to rustle |
| Cat. | xitxarrot | Great Reed Warbler, 373 |
| Esp. | chichear | to whisper |
| Cat. | chicharra et var. | Reed Warbler, 374 |
| Esp. | chicharra | cicada |
| Gallego | chuchiar | to chirp |
| Ital.: Otr. | ciciarra | Great Tit, 390 |
| Sbc. | cicur | Great Tit, 390 |
| Ital.: Gen. | ciaciarâ | Ital. chiachierare to chat, babble |
| Ital.reg. | chiacchierara et var. | Great Tit, 390; Nuthatch, 401 |
| Ital.nord | ciciredda | Short-toed Lark, 300 |
| Ital.Sen. | cecero | cicada |
| Ital.reg. | cecero | Grey Heron, 118; Swan, 25 |
| Ital.reg. | ciciaru, cicerone etc. | Corn Bunting, 445 |
| Ital.nord | ciacierina, ciaciarèla | Melodious Warbler, 380 |
| Ital.: Lucca | ciaciare | to chat |
| Ital.nord | ciacarare | ciacolare |
| Ital.: Friuli | cacarute | Lesser Whitethroat, 363 |
| Ital. | ciaccóna, ceccóna | chaconne |
| Franç. | chaconne | air musical |
| Ital. | ciácche | cracking |
| Ital. | ciácco | swine |