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B

B is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand B rather than just read about it. In short: B (minuscule: b) is the second letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is bee (pronounced ), plural bees.

B — main illustration
B — illustration

Key takeaways

  • B belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect B to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of B from memory before moving on to harder problems.

Reference excerpt

B (minuscule: b) is the second letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is bee (pronounced ), plural bees. It represents the voiced bilabial stop in many languages, including English. In some other languages, it is used to represent other bilabial consonants.

History

The Roman ⟨B⟩ derived from the Greek capital beta ⟨Β⟩ via its Etruscan and Cumaean variants. The Greek letter was an adaptation of the Phoenician letter bēt ⟨𐤁⟩. The Egyptian hieroglyph for the consonant /b/ had been an image of a foot and calf ⟨ ⟩, but bēt (Phoenician for "house") was a modified form of a Proto-Sinaitic glyph ⟨ ⟩ adapted from the separate hieroglyph Pr ⟨ ⟩ meaning "house". The Hebrew letter bet ⟨ב⟩ is a separate development of the Phoenician letter. By Byzantine times, the Greek letter ⟨Β⟩ came to be pronounced /v/, so that it is known in modern Greek as víta (still written βήτα). The Cyrillic letter ve ⟨В⟩ represents the same sound, so a modified form known as be ⟨Б⟩ was developed to represent the Slavic languages' /b/. (Modern Greek continues to lack a letter for the voiced bilabial plosive and transliterates such sounds from other languages using the digraph/consonant cluster ⟨μπ⟩, mp.) Old English was originally written in runes, whose equivalent letter was beorc ⟨ᛒ⟩, meaning "birch". Beorc dates to at least the 2nd-century Elder Futhark, which is now thought to have derived from the Old Italic alphabets' ⟨ 𐌁 ⟩ either directly or via Latin ⟨⟩. The uncial ⟨⟩ and half-uncial ⟨⟩ introduced by the Gregorian and Irish missions gradually developed into the Insular scripts' ⟨⟩. These Old English Latin alphabets supplanted the earlier runes, whose use was fully banned under King Canute in the early 11th century. The Norman Conquest popularised the Carolingian half-uncial forms which latter developed into blackletter ⟨ ⟩. Around 1300, letter case was increasingly distinguished, with upper- and lower-case B taking separate meanings. Following the advent of printing in the 15th century, the Holy Roman Empire (Germany) and Scandinavia continued to use forms of blackletter (particularly Fraktur), while England eventually adopted the humanist and antiqua scripts developed in Renaissance Italy from a combination of Roman inscriptions and Carolingian texts. The present forms of the English cursive B were developed by the 17th century.

Use in writing systems

English In English, ⟨b⟩ denotes the voiced bilabial stop /b/, as in bib. In English, it is sometimes silent. This occurs particularly in words ending in ⟨mb⟩, such as lamb and bomb, some of which originally had a /b/ sound, while some had the letter ⟨b⟩ added by analogy (see Phonological history of English consonant clusters). The ⟨b⟩ in debt, doubt, subtle, and related words was added in the 16th century as an etymological spelling, intended to make the words more like their Latin originals (debitum, dubito, subtilis). As /b/ is one of the sounds subject to Grimm's Law, words which have ⟨b⟩ in English and other Germanic languages may find their cognates in other Indo-European languages appearing with ⟨bh⟩, ⟨p⟩, ⟨f⟩ or ⟨φ⟩ instead. For example, compare the various cognates of the word brother. It is the seventh least frequently used letter in the English language (after V, K, J, X, Q, and Z), with a frequency of about 1.5% in words.

Other languages Many other languages besides English use ⟨b⟩ to represent a voiced bilabial stop. In Estonian, Danish, Faroese, Icelandic, Scottish Gaelic and Mandarin Chinese Pinyin, ⟨b⟩ does not denote a voiced consonant. Instead, it represents a voiceless /p/ that contrasts with either a geminated /pː/ (in Estonian) or an aspirated /ph/ (in Danish, Faroese, Icelandic, Scottish Gaelic and Pinyin) represented by ⟨p⟩. In Fijian ⟨b⟩ represents a prenasalised /mb/, whereas in Zulu and Xhosa it represents an implosive /ɓ/, in contrast to the digraph ⟨bh⟩ which represents /b/. Finnish uses ⟨b⟩ only in loanwords. In many Romance languages (Spanish, Catalan, European Portuguese, Galician), ⟨b⟩ between vowels is pronounced as a voiced bilabial fricative or approximant [β]. ⟨v⟩ often represents the same phoneme, transcribed /b/ in IPA.

Other systems In the International Phonetic Alphabet, [b] is used to represent the voiced bilabial stop phone. In phonological transcription systems for specific languages, /b/ may be used to represent a lenis phoneme, not necessarily voiced, that contrasts with fortis /p/ (which may have greater aspiration, tenseness or duration).

Other uses

In the base-16 numbering system, B is a number that corresponds to the number 11 in decimal (base 10) counting. B is a musical note. In English-speaking countries, it represents Si, the 12th note of a chromatic scale built on C. In Central Europe and Scandinavia, "B" is used to denote B-flat and the 12th note of the chromatic scale is denoted "H". Archaic forms of 'b', the b quadratum (square b, ♮) and b rotundum (round b, ♭) are used in musical notation as the symbols for natural and flat, respectively. In Contracted (grade 2) English braille, ⟨b⟩ stands for "but" when in isolation. In computer science, B is the symbol for byte, a unit of information storage. In engineering, B is the symbol for bel, a unit of level. In chemistry, B is the symbol for boron, a chemical element.

Related characters

Ancestors, descendants and siblings 𐤁 : Semitic letter Bet, from which the following symbols originally derive Β β : Greek letter Beta, from which B derives Ⲃ ⲃ Coptic letter Bēta, which derives from Greek Beta В в : Cyrillic letter Ve, which also derives from Beta Б б : Cyrillic letter Be, which also derives from Beta ʙ : A small capital B, used as the lowercase B in a number of alphabets during romanization 𐌁 : Old Italic B, which derives from Greek Beta ᛒ : Runic letter Berkanan, which probably derives from Old Italic B 𐌱 : Gothic letter bercna, which derives from Greek Beta IPA-specific symbols related to B: ɓ ʙ β 𐞄 𐞅 B with diacritics: Ƀ ƀ Ḃ ḃ Ḅ ḅ Ḇ ḇ Ɓ ɓ ᵬ ᶀ Ꞗ ꞗ : B with flourish ᴃ ᴯ B b : Barred B and various modifier letters are used in the Uralic Phonetic Alphabet. Ƃ ƃ : B with topbar

Derived ligatures, abbreviations, signs and symbols ␢ : U+2422 ␢ BLANK SYMBOL ฿ : Thai baht ₿ : Bitcoin ♭: The flat in music, mentioned above, still closely resembles lowercase b.

Other representations

… excerpt ends here. Continue reading the full article.

Illustrations

B illustration
B illustration
B: Late Renaissance or early Baroque design of a B, from 1627
Late Renaissance or early Baroque design of a B, from 1627
B illustration
B illustration

Worked examples

Example 1 — a first encounter with B

Start with the simplest possible case. Write down what B claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to B before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about B ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of B

In research
B appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses B in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
B is common in secondary-school and first-year university syllabi. It links to neighbouring topics ISO basic Latin letters, so understanding it makes those chapters shorter.
In everyday life
Look for B outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study B in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what B means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain B out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is B in simple terms?

B (minuscule: b) is the second letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is bee (pronounced ), plural bees.

Why does B matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study B?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on B.

Tags

  • ISO basic Latin letters

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