There are 10 14-letter words that start with 'apo'.
| apocalypticism | apocryphalness |
| apolipoprotein | apologetically |
| apoplectically | aposematically |
| apostolicities | apostrophising |
| apostrophizing | apotropaically |
Note: These 10 14-letter words that start with 'apo' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with apos, apol, apoc, apop, apot, apod, apog, apom, apoa, apon, apor, apoe.
4-letter words start with 'apo' (2)