th

As an adjective twelfth

is (ordinal) the ordinal form of the number twelve, describing a person or thing in position number of a sequence.

As a noun twelfth

is (fractional) one of twelve equal parts of a whole.

As an adjective twelfth is

(ordinal) the ordinal form of the number twelve, describing a person or thing in position number of a sequence.

As a noun twelfth is

(fractional) one of twelve equal parts of a whole.

As a numeral seventeen is

the cardinal number occurring after sixteen and before eighteen, represented in roman numerals as xvii and in arabic numerals as.

As a noun pyrolysis

is (chemistry|physics) the decomposition of a material or compound due to heat in the absence of oxygen or any other reagents.

As a noun teenth is

(slang|used in measuring drugs) a sixteenth (1/16) of an ounce.

As a numeral fourteen is

the cardinal number occurring after thirteen and before fifteen, represented in roman numerals as xiv and in arabic numerals as 14.

As a letter z is

the letter z with a.

As a noun terms

is .

As a numeral seventeenth is

(ordinal) the ordinal form of the number seventeen.

As a noun seventeenth is

(fractional) one of seventeen equal parts of a whole.

As an adjective eighteenth

is the ordinal form of the number eighteen.

As a noun eighteenth

is the person or thing in the eighteenth position.