| Franç. | bis | grey |
| Franç.: reg. | pie-grièche buse | Great Grey Shrike, 324 |
| Franç.: Liège | abissé, abussi | obscur, FEW 23: 184 |
| Franç.: Lavedan | bispá | hâler, brunir, FEW 23: 177 |
| Franç.: Biros | biás | ce soir, FEW 22: 244 |
| Ital.n. | biso | ashy |
| Ital.: Ven. | biseghin | sandpipers, 180 |
| Franç. | biset | pigeon, 254, 256 |
| Franç.: SR | bisar | sandpipers, 171 |
| Franç.: SR | bisonette | Godwit, 179 |
| Franç.: reg. | bisette, bizieux | Pochard, 50 (grey back) |
| Franç.: Berry | busette et var. | Dunnock, 408 |
| Franç.: Jura | bôso | id. |
| Lat. | busius | "fulvous" |
| Russian | busyj | dark blue |
| Prov.: a.litt. | guza | (b>g) obscurity, FEW 23: 184 |
| Prov.: a.litt. | agusa | half black, half white (horse) FEW 23: 187 |
| Franç.: Villette | bouisson | malpropre, FEW 23: 193 |
| Franç.: Metz | boseré | barbouillé |
| Franç.: Castres | bouxarrou | dirty, FEW 23: 190 |
| Franç.: Ruz | bwètSná | se salir la figure, FEW 23: 194 |
| Franç.: Bourb. | rabachis | malpropreté, FEW 23: 192 |
| Franç.: Romans | bâchons | barbouillé, FEW 23: 190 |
| Franç.: Dourdain | bachou | individu malpropre, FEW 23: 190 |
| Franç.: Démuins | vésoul | (b>v) femme malpropre, FEW 23: 190 |
| Franç.: Migé | bouge | mal lavé (linge), FEW 23: 189 |
| Franç. | bouge | logement obscur, dark premises; cabaret malfamé, sleazy bar (cf. boui-boui, ci-dessous et bistrotð3.1.15.) |
| Franç.: Varennes | begau | malpropre, FEW 23: 189 |
| Franç.: Redon | bouguillou | dirty, FEW 23: 189 Rennes bouguignon id. |
| Franç.: Saint. | bogrous | dirty, FEW 23: 189 |
| Franç. | bougran | toile employée dans les doublures de vêtements; elle est en général de couleur sombre. En tous cas pas de Boukhara, ville d'Asie |
| Franç. | boue | mud |
| Franç.: Mouscron | boudré | dirty, FEW 23: 186, 188 |
| Franç.: Louvain | imbaudrouyî | salir, FEW 23: 193 |
| Gael.I. | bû | hyacinth, bell flower |
| Gael.I. | buch | "hyacinth colour" |
| Franç.: Québec | boucane | smoke |