fortieth Definition

1a. In counting: next after thirty-ninth;
1b. In counting: last of forty.
2. In fortieth position.

1. One of forty equal parts. Also as adj.

Example: a fortieth share
2. A fraction equal to one divided by forty (usually written &onefortieth; ).
3. A person coming fortieth, eg in a race or exam.

Example: He came fortieth in a class of ninety