From Wiktionary, the free dictionary
Internationalism; see 12o, 12º, 12.º.
12:o (not comparable)
- (archaic) 12th
- Synonym: för det tolfte
- 1:o, 2:o, 3:o, 4:o, 5:o, 6:o, 7:o, 8:o, 9:o, 10:o, 11:o, 12:o, 13:o, 14:o, 15:o, 16:o, 17:o, 18:o, 19:o, 20:o
12:o n
- (printing) Abbreviation of duodesformat: duodecimo