| Vocable | Translation |
| bipennifer/bipennifera/bipenniferum, AO Adjective | bearing a two edged axe |
| bipennis/bipenne, bipennis M Adjective | two-edged, having two wings |
| bipensilis/bipensile, bipensilis M Adjective | that may be suspended on two sides |
| bipertitus/bipertita/bipertitum, AO Adjective | bipartite, that is divided in two parts, double (… |
| bipes, bipedis M Adjective | two-footed, bipedal, on two feet (of quadrupeds) |
| bipinnis/bipinne, bipinnis M Adjective | two-edged, having two wings |
| biplex, biplicis M Adjective | twofold, double, divided, two-faced |
| biprorus/biprora/biprorum, AO Adjective | having two prows (ship), double-ended |
| biremis/bireme, biremis M Adjective | two-oared, having two oars to each bench/banks of… |
| birotus/birota/birotum, AO Adjective | two-wheeled, with/having two wheels |
| bisacutus/bisacuta/bisacutum, AO Adjective | two-edged, twibill |
| bisaetus/bisaeta/bisaetum, AO Adjective | with hair/bristles down on both sides of neck, wi… |
| bisetus/biseta/bisetum, AO Adjective | with hair/bristles down on both sides of neck, wi… |
| bisextialis/bisextiale, bisextialis M Adjective | containing an intercalary day (bisextum) (Julian … |
| bisextilis/bisextile, bisextilis M Adjective | leap (year), intercalary |
| bisolis/bisole, bisolis M Adjective | having two soles (foot) |
| bisomus/bisoma/bisomum, AO Adjective | for/having two bodies |
| bisonus/bisona/bisonum, AO Adjective | sounding twice |
| bissextilis/bissextile, bissextilis M Adjective | leap (year) |
| bissextus/bissexta/bissextum, AO Adjective | leap (year) |
| bisulcilinguus/bisulcilingua/bisulcilinguum, AO Adjective | with forked tongue, hypocritical/deceitful/lying … |
| bisulcis/bisulce, bisulcis M Adjective | forked, divided into two parts, cloven-footed, cl… |
| bisulcus/bisulca/bisulcum, AO Adjective | forked, divided into two parts, cloven-footed |
| bisyllabus/bisyllaba/bisyllabum, AO Adjective | disyllabic |
| bithalassus/bithalassa/bithalassum, AO Adjective | w/two seas touching/bounding, where two seas meet… |
| bituminatus/bituminata/bituminatum, AO Adjective | tinctured/impregnated with bitumen (generic for h… |
| bitumineus/bituminea/bitumineum, AO Adjective | of/connected with bitumen (generic name for vario… |
| bituminosus/bituminosa/bituminosum, AO Adjective | abounding in bitumen (generic name for various hy… |
| bivertex, biverticis M Adjective | having two summits/peaks |
| bivius/bivia/bivium, AO Adjective | traversable both ways, having two approaches |