English

Abbreviations, acronyms and symbols

B2–C2Writing 7 min

Abbreviations shorten words with a full stop, a slash or superscript letters, acronyms gather the initials of a name, and symbols are fixed signs. The superscript letter of an abbreviation comes after a full stop: M.ª Luisa vive en la calle Sol, n.º 5.

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CheatsheetB2–C2

PointRuleExampleEnglish
Initial lettersthe first letters, or the initial of each word, with a full stopadj. = adjetivo / a. C. = antes de Cristoadj. = adjective / a. C. = before ChristB2
Contractionletters in the middle are left out and a full stop ends the abbreviationFdo. = firmado / Sra. = señoraFdo. = signed / Sra. = MrsB2
Superscript lettersthe initial, a full stop and the last letter in superscriptM.ª = María / n.º = númeroM.ª = María / n.º = numberB2
Slashtwo initials joined by a slash, with no full stops/n = sin número · c/c = cuenta corrientes/n = without a number · c/c = current accountB2
Acronymsthe first time, the acronym goes in parentheses after the full nameLa Organización Mundial de la Salud (OMS) publicó un informe.The World Health Organization (WHO) published a report.B2
Symbolsa sign with no letters stands for a word or an idea© = derechos de autor© = copyrightB2
Chemical elementscapital initial, no full stop and no pluralFe = hierro / Ca = calcioFe = iron / Ca = calciumC1
Slash and number sign/ announces more pages and # means “number”Soy el jugador #7.I'm player #7.C1
Fixed formulaseach part takes its own full stop and superscript letterV.º B.º = visto buenoV.º B.º = approvedC2
Specialised texts† marks a person who has died, and * a hypothetical or incorrect formJuan Ramos † / *yo sabo ≠ yo séJuan Ramos † / *yo sabo ≠ I knowC2
Trapthe full stop goes before the superscript letterM.ª Luisa vive aquí.María Luisa lives here.B2
Trapan acronym is written in capitals, with no full stopsLa OMS publicó un informe.The WHO published a report.B2

How abbreviations are formedB2–C2

MethodFormExampleEnglish
By truncationthe first letters of the word are written, then a full stopadj. = adjetivo / ed. = edición / doc. = documento / cap. = capítuloadj. = adjective / ed. = edition / doc. = document / cap. = chapterB2
By initial letterthe initial of each word is written, each with a full stop and a space after ita. C. = antes de Cristo / s. = sigloa. C. = before Christ / s. = centuryB2
By contractionletters in the middle are left out and the beginning and end of the word are kept, with a full stopFdo. = firmado / atte. = atentamente / Sra. = señoraFdo. = signed / atte. = sincerely / Sra. = MrsB2
With superscript lettersthe initial, a full stop and the last letter of the word, raisedM.ª = María / n.º = número / f.º = folioM.ª = María / n.º = number / f.º = folioB2
With a slashthe initials of two words are joined by a slash, with no full stop or spacess/n = sin número · c/c = cuenta corrientes/n = without a number · c/c = current accountB2
With superscript letters in fixed formulaseach word of the formula takes its full stop and its superscript letter, and a space separates themV.º B.º = visto buenoV.º B.º = approvedC2

AcronymsB2

UseRuleExampleEnglish
First mentionthe full name and, in parentheses, the acronymLa Organización Mundial de la Salud (OMS) publicó un informe.The World Health Organization (WHO) published a report.B2
Later mentionsthe acronym aloneLa OMS publicó otro informe en mayo.The WHO published another report in May.B2
Writingcapitals, with no full stops or spacesMi hermana trabaja en una ONG. / La ONU tiene su sede en Nueva York.My sister works for an NGO. / The UN has its headquarters in New York.B2

SymbolsB2–C2

  • A symbol without letters, which cannot be alphabetised, is a sign that stands for a word or an idea: © = derechos de autor / ® = marca registrada© = copyright / ® = registered trademark
  • C2In specialised texts, the cross † beside a name shows that the person has died: Juan Ramos †Juan Ramos †
  • C2In specialised texts, the asterisk * before a form shows that it is hypothetical or incorrect: *yo sabo ≠ yo sé*yo sabo ≠ I know

Symbols with letters and without lettersC1

SymbolMeaningWriting
Fe, Cachemical elements: hierro (iron) and calcio (calcium)capital initial, no full stop and no pluralC1
/in a document, more pages followat the foot of the pageC1
#numberbefore the figure: #7C1

Typical errorsB2–C2

WrongRightRule
Mª Luisa vive aquí.M.ª Luisa vive aquí.the superscript letter comes after a full stopB2
Nació en el s XVIII.Nació en el s. XVIII.an abbreviation by initial letter takes a full stopB2
Calle Sol, s./n.Calle Sol, s/n.an abbreviation with a slash has no full stopsB2
La O.M.S. publicó un informe.La OMS publicó un informe.an acronym is written in capitals, with no full stopsB2
El símbolo Fe. corresponde al hierro.El símbolo Fe corresponde al hierro.a chemical symbol takes no full stopC1
El símbolo del calcio es CA.El símbolo del calcio es Ca.in a chemical symbol, only the initial is a capitalC1
El director puso su Vº Bº.El director puso su V.º B.º.in a fixed formula, each superscript letter comes after its own full stopC2

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