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.
sixteenth
English
Numeral
(head)
(ordinal) The ordinal form of the number sixteen.
Usage notes
English ordinal numbers may function as either an adjective or as a noun, and almost never appear in the plural.
Abbreviations
: , 16th; (in names of monarchs and popes ) XVI
Noun
(
en noun)
(fractional) One of sixteen equal parts of a whole.
- A sixteenth of 320 is 20.
sixteenthly
English
Adverb
(-)
In the sixteenth place; sixteenth in a row.