(music) a chord with the bass note, minor third, diminished fifth, and diminished seventh above it

(music) a chord with the bass note, the minor third, perfect fifth, and the minor seventh above it

(music) an interval that is equivalent to an octave

plural of seventh chord

(music) a chord that contains four notes that make three thirds

(nonstandard) seventy-first

A fractional part of seventy-one

A poem consisting of seven lines, split into three stanzas.

(amateur radio, CB) Best wishes; regards.

In the seventeenth place; seventeenth in a row.