1º
Portuguese, adjective
1º is spelled º (one letter) and appears 832 times per million words in written Portuguese, the 111th most frequent Portuguese word form (wordfreq, 2021 data). 1º is a Portuguese adjective meaning “alternative form of 1.º” (English Wiktionary, September 2026). On this page, 1.ª is a different word: “abbreviation of primeira”. On this page, 1.º is a different word: “abbreviation of primeiro”. On this page, 1ª is a different word: “feminine singular of 1º”.
What does 1º mean in English?
adjective
- 1
alternative form of 1.º
adjective
- 1
abbreviation of primeira
adjective
- 1
abbreviation of primeiro
number
- 1
femininefeminine singular of 1º
Source: English Wiktionary, Portuguese section, dump of September 2, 2026 (CC BY-SA 4.0).
How Portuguese dictionaries define it
noun: 1. número um algarísmico
The definition in the Portuguese Wiktionary (Wikcionário), in Portuguese.
Source: Portuguese Wiktionary (Wikcionário), dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
Forms of 1º
- 1ª feminine
- 1ᵒˢ masculine plural
- 1ᵃˢ feminine plural
- 1.ª feminine
- 1.ᵒˢ masculine plural
- 1.ᵃˢ feminine plural
- 1º alternative proscribed
Source: English Wiktionary and Portuguese Wiktionary (Wikcionário) (dumps of September 2, 2026 and September 1, 2026).
How common is 1º in Portuguese?
1º appears 832 times per million words in written Portuguese.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).