The ordinal numeral form of one thousand; last in order of a series of a thousand; next after the nine hundred and ninety-ninth.

(singular only) The person or thing in the thousandth position. / One of a thousand equal parts of a whole.

plural of thousandth

One of one hundred thousand equal parts of a whole.

The ordinal form of the number hundred thousand.

The ordinal form of the number ten thousand.

One of ten thousand equal parts of a whole.

plural of hundred-thousandth