The word "tercer" is an adjective.
/tɛɾˈseɾ/
In Spanish, "tercer" is used to denote the ordinal number "third." It describes the position in a sequence or order. It is commonly used both in oral speech and written contexts. The frequency of use is relatively high, especially in contexts related to ranking, order, or sequences.
The third book in the series is the best.
Ella llegó en tercer lugar en la competencia.
She finished in third place in the competition.
Necesitamos enviar el tercer informe antes del viernes.
While "tercer" is less commonly found in idiomatic expressions than some other numbers, it can still appear in a few phrases:
It feels like I'm in the third heaven of happiness.
Tercer grado
During the interrogation, the detective asked him third-degree questions.
Tercer mundo
The word "tercer" comes from the Latin "tertius," which also means "third." In Spanish, "tercer" is used in the masculine form, while "tercera" is the feminine form, as with most adjectives.
Overall, "tercer" plays a significant role in the Spanish language as an ordinal indicator and appears frequently in various contexts, both formal and informal.