primeira

Primeira is the feminine singular form of the Portuguese adjective primeiro, meaning first. It agrees with feminine singular nouns and is used to express order or sequence in feminine contexts. The word derives from Latin primus.

In everyday usage, primeira appears in numerous common expressions: a primeira vez (the first time), a primeira página (the first page), a primeira fila (the front row). It also occurs in compound nouns and formal titles, often written with a hyphen in fixed terms, such as primeira-dama (First Lady).

When referring to multiple feminine items, the plural forms are primeiras (feminine) and primeiros (masculine). Examples include as primeiras páginas (the first pages) or os primeiros dias (the first days). In proper nouns and formal designations, primeira is frequently capitalized or part of a fixed name, as in Primeira Liga (the top football division in Portugal) and Primeira Guerra Mundial (First World War).

Overall, primeira functions as a grammatical marker of ordinality in feminine contexts and is a common building block in Portuguese phrases and titles. Its usage spans everyday language, literature, and institutional names, reflecting its role in signaling sequence and priority for feminine nouns.