coming after the fifth and before the seventh in numbering or counting order, position, time, etc; being the ordinal number of six: often written 6th
b.
(as noun)
the sixth to go
noun
2.
a.
one of six equal or nearly equal parts of an object, quantity, measurement, etc
b.
(as modifier)
a sixth part
3.
the fraction equal to one divided by six (1⁄6)
4. music
a.
the interval between one note and another note six notes away from it counting inclusively alongthe diatonic scale
b.
one of two notes constituting such an interval in relation to the other
See also major (sense 14), minor (sense 4), interval (sense 5)
c. short for sixth chord
adverb
5. Also: sixthly
after the fifth person, position, etc
sentence connector
6. Also: sixthly
as the sixth point: linking what follows to the previous statements
Examples of 'sixthly' in a sentence
sixthly
Sixthly, enforcement of decisions of jurisdictional bodies should be carried out without undue delay.
Наталія Юріївна Сaкара 2018, 'The right to a fair trial and a modern civil procedure model', Проблеми Законностіhttp://plaw.nlu.edu.ua/article/view/131221. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Sixthly, and lastly, tendrils, soon after clasping a support, but not after a mere temporary curvature, contract spirally.
Charles Darwin The Movements and Habits of Climbing Plants (1906). Retrieved in 2019 from Project Gutenberg (https://www.gutenberg.org/ebooks/)