eighteenth Definition

eighteenth
adj

1a. In counting: next after seventeenth;
1b. In counting: last of 18.
2. In eighteenth position.
3a. The eighteenth day of the month;

Form: the eighteenth
3b. golf.
The eighteenth hole.
Form: the eighteenth

noun

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

Example: an eighteenth share
2. A fractionequal to one divided by eighteen (usually written &oneeighteenth; ).
3. A person coming eighteenth, eg in a race or an exam.

adverb

1. Eighteenthly.

Derivative: eighteenthly
adverb

Used to introduce the eighteenth point in a list.

Etymology: Anglo-Saxon; see eighteen + -th¹.