numeral
seven
A1
sieben is the cardinal numeral meaning 'seven.' It’s used for counting and quantities. In compounds and the ordinal form it shortens to sieb- (e.g., siebte = seventh, siebzig = seventy). It has no plural and behaves like other German numerals without gender or case inflections when used apodictically.
Examples
Als sieben Schüler fehlten, verschob der Lehrer den Test, weil die Klasse dann zu klein war.
When seven students were absent, the teacher postponed the test because the class was then too small.
Ich habe sieben Bücher gelesen.
I have read seven books.
Details
Mnemonics
Picture seven dots on a die plus one extra.
Sieben sounds like 'seven' (both start with 'sev/si'), associate with 7.
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Notes
Basic cardinal number.