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English Words Starting With B

10,030 entries — pick a word to see its definition, pronunciation, and usage.

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Noun Verb Adjective Adverb Plural noun Combining form Verb (transitive)Verb (intransitive)Verb (ambitransitive)

bitterroot range
nounLow
/ˈbɪtəruːt ˈreɪn(d)ʒ/A mountain range in the northwestern United States, part of the Rocky Mountains.
bitterroot river
nounVery Low
/ˈbɪtəruːt ˈrɪvə/A proper noun referring to a specific river in the state of Montana, USA, named after the Bitterroot flower (Lewisia rediviva).
bitters
nounplural-nounB2
/ˈbɪtəz/A concentrated alcoholic flavouring made by infusing bitter herbs, roots, or barks, primarily used as a key ingredient in cocktails.
bittersweet
adjectivenounC1
/ˌbɪtəˈswiːt/Something that is both pleasant and painful at the same time.
bitterweed
nounLow
/ˈbɪtəwiːd/Any of several North American plants known for their extremely bitter taste or toxic properties.
bitterwood
nounLow (Technical/Lexical)
/ˈbɪtəwʊd/The wood from various tropical trees of the genus Quassia or Simarouba, known for its intensely bitter taste.
bitterwort
nounRare
/ˈbɪtəwɜːt/A plant with a bitter taste, used medicinally or as a tonic.
bitting
nounLow (C2)
/ˈbɪtɪŋ/The present participle or gerund of 'bit', meaning to put a bit (mouthpiece) into a horse's mouth, or to restrain or control.
bittock
nounVery Low / Obsolete
/ˈbɪtək/A small or little bit; a short distance; a small amount of time.
bittorrent
nounC1/C2
/ˌbɪtˈtɒrənt/The proprietary name of a peer-to-peer file sharing protocol and software client that breaks large files into smaller pieces for efficient distribution.
bitumen
nounLow
/ˈbɪtʃʊmɪn/A viscous, black, tar-like substance derived from petroleum, used for waterproofing, road surfacing, and roofing.
bituminize
verbverb-transitiveVery Low
/bɪˈtjuːmɪnaɪz/To treat, combine, or convert a material with bitumen, a thick, sticky form of petroleum.
bituminous coal
nounLow
/bɪˌtjuː.mɪ.nəs ˈkəʊl/A dense, soft, sedimentary coal with high volatile matter and tar content, often used for steam-electric power generation and coke production.
bitzer
nounC2
/ˈbɪtsə/A dog of mixed or indeterminate breed; a mongrel.
biuniqueness
nounVery Low (Specialized/Technical)
/ˌbaɪ.juːˈniːk.nəs/In linguistics, the property of a phonological system where there is a one-to-one correspondence between phonetic segments and phonemes.
biuret
nounVery low
/ˈbʌɪjʊrɛt/A chemical compound formed by condensation of two molecules of urea.
bivalence
nounC2
/baɪˈveɪləns/The quality or state of having two possible values, outcomes, or meanings.
bivalent
adjectivenounLow
/ˌbaɪˈveɪlənt/Having a valency of two; capable of combining with two atoms of a univalent element.
bivalve
adjectivenounLow
/ˈbaɪvælv/A marine or freshwater mollusc having a body enclosed within a hinged shell consisting of two valves.
bivane
nounVery Low (Technical Term)
/ˈbaɪ.veɪn/A wind-measuring instrument with two or more vanes that indicate both wind direction and some aspects of its three-dimensional motion.

Showing 4881–4900 of 10030 words.