From Longman Dictionary of Contemporary Englishseventhsev‧enth1 /ˈsevənθ/ ●●● S3 W3 adjective 1 coming after six other things in a series in the seventh century her seventh birthday2 → be in seventh heaven —seventh pronoun I’m planning to leave on the seventh (=the seventh day of the month).
Examples from the Corpus
seventh• The store is on Seventh Avenue.• In seventh grade, the problem increased once again, with nearly 22 percent of students identified as work-inhibited.the seventh• I'll call you when I get back on the seventh.seventhseventh2 noun [countable] one of seven equal parts of somethingExamples from the Corpus
seventh• For example, the gravity field on the lunar surface is about one seventh as strong as on Earth. 