siebzehn

Siebzehn is the German cardinal number for the value 17. It is written as a single word in standard German and is used in counting, telling ages, prices, dates, and other numerical contexts. The form combines sieben (seven) and zehn (ten), with a historical simplification that the ending of sieben is reduced before zeh, resulting in siebzehn.

Phonologically, the word is formed from the syllables of sieben and zehn, with the stress typically on the first syllable. In everyday speech, siebzehn is treated as a fixed unit when used as a number in sentences, such as counting, saying ages, or specifying times.

Spelling and usage notes: the standard modern spelling is siebzehn. Historically there were variants such as siebenzehn, but the current form is the accepted norm in contemporary German. In dates and time notation, numbers can also be written as digits, for example, 17, or as words, for example, siebzehn. The ordinal form is siebzehnte, used to denote the seventeenth position or year, such as the siebzehnte Tag or das siebzehnte Jahr.

In practical usage, siebzehn appears in phrases like siebzehn Uhr for 17:00, or in statements such as er ist siebzehn Jahre alt. The number is prime and appears across various contexts in German-language communication, from mathematics and arithmetic to everyday conversation and writing.