1. The ordinal of seven.

2. One part in seven; a dissonant interval.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• seveny,
• severnt,
• sventy,
• servent,
• sevnty,
• sevent,
• sovent,
• eventho,
• seventhn,
• sevnth,
• sevant,
• sevendy,
• seventth,
• seveneth,
• seveth,
• seventhy,
• stenth,
• sevenity,
• srenth,
• senventh

• seventhly,
• seventieth,
• seventeen,
• seventies,
• seventy.

The adjective form of the word "seventh" is "seventh".

The plural of the "seventh" can be the "sevenths".

The singular of the "seventh" can be the "seventh".