| ABIRRITATING | • abirritating v. Present participle of abirritate. • ABIRRITATE v. to soothe or make less irritable. |
| BIRACIALISMS | • BIRACIALISM n. the state of being biracial. |
| BIRDDOGGINGS | • BIRDDOGGING n. the act of controlling closely with unceasing vigilance. |
| BIRDWATCHERS | • birdwatchers n. Plural of birdwatcher. • bird␣watchers n. Plural of bird watcher. • BIRDWATCHER n. one who watches birds as a hobby. |
| BIRDWATCHING | • birdwatching n. Observing or identifying wild birds in their natural environment. • birdwatching n. (Slang) The hobby of watching rocket launches. • bird␣watching n. Alternative spelling of birdwatching. |
| BIREFRINGENT | • birefringent adj. Of or pertaining to birefringence. • birefringent adj. Having two refractive indices (depending on orientation). • BIREFRINGENT adj. relating to birefringence. |
| BLACKBIRDERS | • blackbirders n. Plural of blackbirder. • BLACKBIRDER n. (Australian slang) a person engaged in press-ganging or kidnapping labourers in the south Pacific region for work on the sugar plantations; a slave trader. |
| BLACKBIRDING | • blackbirding n. (UK, Australia) The practice of kidnapping Pacific Islanders, or kanakas, for sale as cheap labour. • blackbirding v. Present participle of blackbird. • BLACKBIRDING n. trafficking in slaves. |
| BUTCHERBIRDS | • butcherbirds n. Plural of butcherbird. • butcher␣birds n. Plural of butcher bird. • BUTCHERBIRD n. the shrike. |
| HUMMINGBIRDS | • hummingbirds n. Plural of hummingbird. • humming-birds n. Plural of humming-bird. • humming␣birds n. Plural of humming bird. |
| MOCKINGBIRDS | • mockingbirds n. Plural of mockingbird. • mocking␣birds n. Plural of mocking bird. • MOCKINGBIRD n. any of various long-tailed songbirds of the New World family Mimidae, noted for mimicking other birds' calls and other sounds. |
| MUTTONBIRDER | • muttonbirder n. One who takes part in muttonbirding, the seasonal harvesting of petrel chicks. • MUTTONBIRDER n. (New Zealand) a person who hunts muttonbirds. |
| SUBIRRIGATED | • subirrigated v. Simple past tense and past participle of subirrigate. • SUBIRRIGATE v. to irrigate by underground pipes. |
| SUBIRRIGATES | • subirrigates v. Third-person singular simple present indicative form of subirrigate. • SUBIRRIGATE v. to irrigate by underground pipes. |
| THUNDERBIRDS | • thunderbirds n. Plural of thunderbird. • Thunderbirds n. Plural of Thunderbird. • THUNDERBIRD n. in North American Indian lore, a huge bird personifying thunder and lightning. |