cincuenta

Cincuenta is the Spanish word for the number 50, a cardinal numeral that represents half of a hundred. It is used in counting, measurement, ages, dates, and other quantitative contexts, and it commonly appears in phrases such as cincuenta por ciento (fifty percent).

Etymology and cognates: The term derives from Latin quinquāgintā and has cognates in other Romance languages, including French cinquante, Italian cinquanta, Portuguese cinquenta, and Romanian cincizeci.

Usage notes: As an adjective, cincuenta modifies a noun (cincuenta años, cincuenta kilómetros). When referring to the decade of the 1950s, the common expression in Spanish is los años cincuenta. In Roman numerals, 50 is represented by the letter L.

Additional notes: Fifty is a composite number with prime factorization 2 × 5². It serves as a landmark value in arithmetic, measurement scales, and statistical contexts, and the word cincuenta appears in a wide range of Spanish-language texts and discourse, including historical references to the 1950s and contemporary uses in counting and percentages.