I. sev ‧ enth 1 /ˈsev ə nθ/ BrE AmE adjective
1 . coming after six other things in a series:
in the seventh century
her seventh birthday
2 . be in seventh heaven informal to be extremely happy
—seventh pronoun :
I’m planning to leave on the seventh (=the seventh day of the month) .
II. seventh 2 BrE AmE noun [countable]
one of seven equal parts of something