dieciocho

Asturian

Asturian numbers ^(edit)

←  17	18	19  →
Cardinal: dieciocho     Ordinal: decimoctavu

Etymology

From diez (“ten”) + y (“and”) + ocho (“eight”).

Numeral

dieciocho (indeclinable)

1. eighteen

Chavacano

Chavacano numbers ^(edit)

←  17	18	19  →
Cardinal: dieciocho     Ordinal: aca-dieciocho, ika-dieciocho, decimoctava, decima octava, decimoctavo, decimo octavo

Etymology

Inherited from Spanish dieciocho (“eighteen”).

Pronunciation

IPA^(key): /dieciot͡ʃo/ [dieci.ot͡ʃo]

• Hyphenation: di‧e‧ci‧o‧cho

Numeral

dieciocho

1. eighteen

Related terms

• diecinueve
• dieciseis
• diecisiete
• diez

Spanish

Spanish numbers ^(edit)

←  17	18	19  →
Cardinal: dieciocho     Ordinal: decimoctavo, décimo octavo     Ordinal abbreviation: 18.º     Fractional: dieciochoavo, dieciochavo
Spanish Wikipedia article on 18

Etymology

Etymology tree

Proto-Indo-European *déḱm̥

Proto-Italic *dekəm

Latin decem

Old Spanish diez

Spanish diez

Proto-Indo-European *éti

Proto-Italic *et

Latin et

Old Spanish e

Spanish y

Proto-Indo-European *oḱtṓw

Proto-Italic *oktō

Latin octō

Old Spanish ocho

Spanish ocho

Spanish dieciocho

From diez (“ten”) + y (“and”) + ocho (“eight”).

Pronunciation

• IPA^(key): /djeˈθjot͡ʃo/ [d̪jeˈθjo.t͡ʃo] (Equatorial Guinea, Spain)
• IPA^(key): /djeˈsjot͡ʃo/ [d̪jeˈsjo.t͡ʃo] (Latin America, Philippines)

  • Audio (Colombia):

    (file)

  • Rhymes: -otʃo
• IPA^(key): /djeθiˈot͡ʃo/ [d̪je.θiˈo.t͡ʃo] (Equatorial Guinea, Spain)
• IPA^(key): /djesiˈot͡ʃo/ [d̪je.siˈo.t͡ʃo] (Latin America, Philippines)
  • Rhymes: -otʃo
• Syllabification: die‧cio‧cho, die‧ci‧o‧cho

Numeral

dieciocho

1. eighteen

Derived terms

• dieciochavo
• dieciocheno
• dieciochesco
• dieciochismo
• dieciochista
• Dieciocho
• dieciochoavo

Proper noun

el dieciocho m

1. (Chile) alternative form of Dieciocho (“the Fiestas Patrias of Chile”)

Further reading

• “dieciocho”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025