1. The ordinal of thousand.

2. One of a thousand equal parts.

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

• thousanth,
• thousandds,
• thousants,
• thousande,
• thousant,
• thousanths,
• rhousandth,
• fhousandth,
• ghousandth,
• yhousandth,
• 6housandth,
• 5housandth,
• tgousandth,
• tbousandth,
• tnousandth,
• tjousandth,
• thousandeth,
• thousendth,
• Thousandard,
• Thousanthth

• thousand,
• Tousant,
• thousand-fold,
• thiocyanate.

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

The plural of the "thousandth" can be the "thousandths".

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