The ordinal form of the number eight.

to divide by eight

The person or thing in the eighth position. / One of eight equal parts of a whole. / (slang) An eighth of an ounce, or approximately 3.5 grams, of marijuana or other drugs.

The cardinal number occurring after seventeen and before nineteen, represented in Roman numerals as XVIII and in Arabic numerals as 18.

(US, education) The period in school that comes after seventh grade and before ninth grade.

The period of time consisting of the years 1800 through 1899.

plural of eighth

The ordinal form of the number twenty-eight.

The person or thing in the twenty-eighth position. / One of twenty-eight equal parts of a whole.

The ordinal form of the number eighteen.