sixteenth

As a numeral sixteenth

is (ordinal) the ordinal form of the number sixteen.

As a noun sixteenth

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

As an adjective undefined is

lacking a definition or value.

As nouns the difference between sixteenth and teenth

is that sixteenth is one of sixteen equal parts of a whole while teenth is a sixteenth (1/16) of an ounce.

As a numeral sixteenth

is the ordinal form of the number sixteen.

As a numeral sixteenth

is (ordinal) the ordinal form of the number sixteen.

As a noun sixteenth

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

As an adverb sixteenthly is

in the sixteenth place; sixteenth in a row.