Portuguese
Adjective
1.º (feminine singular 1.ª, masculine plural 1.ºs, feminine plural 1.ªs, not comparable)
- Abbreviation of primeiro.
Spanish
Alternative forms
Adjective
1.º m (feminine singular 1.ª, masculine plural 1.ºs, feminine plural 1.ªs)
- Abbreviation of primero. 1st