substituído

Substituído is the past participle of the verb substituir in Portuguese. It can function as an adjective meaning "replaced" or as part of the passive voice to indicate that something has been replaced. It agrees with the noun it modifies in gender and number: substituído (masculine singular), substituída (feminine singular), substituídos (masculine plural), substituídas (feminine plural).

Etymology and form: The word derives from Latin substituere, formed by the prefix sub- (under) and statuere/stituere (to place or set). Through Portuguese, it evolved into substituir and its past participle substituído, retaining the core sense of placing one thing in place of another.

Usage: Substituído commonly appears in contexts such as maintenance, engineering, and sports. Examples include: O motor foi substituído. (The engine has been replaced.) O jogador foi substituído no segundo tempo. (The player was substituted in the second half.) A peça substituída foi removida para inspeção. (The replaced part was removed for inspection.) In these cases, the participle often accompanies a form of ser or estar to express a completed replacement or a resulting state.

Related forms and contrasts: Substituível means "substitutable." Substituição is the noun for the act or process of substituting, while substituto refers to a substitute person or thing. Substituído can function adjectivally to describe a recently replaced item or a person who has been replaced in a given role but does not act as the substitute themselves. Portuguese speakers distinguish substituído from substituível and from substituto based on whether the focus is on the replacement event, the substitutable nature, or the substitute person.