
1) Italian fairy tale 2) Ordinal
Found on
https://www.crosswordclues.com/clue/thirteenth

In music or music theory, a thirteenth is the interval between the sixth and first scale degrees when the sixth is transposed up an octave, creating a compound sixth, or thirteenth. The thirteenth (an octave plus a sixth) is most commonly major Play or minor Play. A thirteenth chord is the stacking of six (major or minor) thirds, the last being ab...
Found on
http://en.wikipedia.org/wiki/Thirteenth
[fairy tale] Thirteenth is an Italian fairy tale collected by Thomas Frederick Crane in Italian Popular Tales. It is Aarne-Thompson type 328, the boy steals the giant`s treasures. ==Synopsis== There was once a father who had thirteen sons, the youngest of whom was named Thirteenth. The father had hard work to support his children, but made ...
Found on
http://en.wikipedia.org/wiki/Thirteenth_(fairy_tale)

• (n.) The quotient of a unit divided by thirteen; one of thirteen equal parts into which anything is divided. • (n.) The interval comprising an octave and a sixth. • (a.) Next in order after the twelfth; the third after the tenth; -- the ordinal of thirteen; as, the thirteenth day of the month. • (n.) The next in order after th...
Found on
http://thinkexist.com/dictionary/meaning/thirteenth/
Thir'teenth` adjective [ From
Thirteen : confer Anglo-Saxon
þreóteóða .]
1. Next in order after the twelfth; the third after the tenth; -- the ordinal of
thirteen ; as, the
thirteenth day of the month.
2. Constituting or being one of thirteen equal...
Found on
http://www.encyclo.co.uk/webster/T/46

In music a thirteenth is an interval comprising an octave and a sixth.
Found on
http://www.probertencyclopaedia.com/browse/VT.HTM

[
adj] - coming next after the twelfth in position 2. [n] - position 13 in a countable series of things
Found on
http://www.webdictionary.co.uk/definition.php?query=thirteenth
13th adjective coming next after the twelfth in position
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.