Thousandth

/ˈθaʊ.zəndθ/

Meaning & Definition

adjective
being the ordinal number corresponding to one thousand.
This is the thousandth time I've told you to clean your room.
numeral
the number following nine hundred ninety-nine and preceding one thousand; 1/1000.
She finished the race in one thousandth place.
a fractional part of a whole divided into one thousand equal parts.
The recipe requires a thousandth of a teaspoon of salt.

Etymology

From the word 'thousand' combined with the suffix '-th' to denote ordinality.

Common Phrases and Expressions

thousandth of a second
A very short duration; a minute fraction of time.
one in a thousand
Something that is very rare or unusual.

Related Words

thousand
The number equivalent to 10^3.
tenth
The ordinal form of the number one-tenth.

Slang Meanings

A very small amount.
I don't care about a thousandth of a dollar.