trente

Trente is the French word for the cardinal number 30. It is used in counting and in combinations such as trente et un (31), trente-deux (32), up to trente-neuf (39). The ordinal form is trentième, used to denote the thirtieth in dates or rankings.

The term derives from Latin triginta, via Old French. It is cognate with the Romance-language numerals for thirty, such as Italian trenta, Spanish treinta or treinta, and Portuguese trinta, all descended from triginta.

In French culture, “trente” appears in historical and economic contexts. The phrase Les Trente Glorieuses, referring to the thirty-year postwar era (roughly 1945–1975), is widely used. The phrase Guerre de Trente Ans denotes the Thirty Years’ War in French.

In mathematics and everyday use, 30 is a composite number, with prime factorization 2 × 3 × 5. It is a multiple of 1, 2, 3, 5, 6, 10, and 15, and is notable as a common base-10 milestone in calendars, ages, and groupings.

Beyond numbers, trente may appear in proper names or historical terms, but in general it refers to the number thirty and to phrases built around it.