15-Letter Words Start with 'spo'

There are 2 15-letter words that start with 'spo'.

spontaneousness	sporangiophores

Note: These 2 15-letter words that start with 'spo' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words start with spor, spoo, spon, spot, spok, spou, spoi, spol, spod.

4-letter words start with 'spo' (1)
5-letter words start with 'spo' (12)
6-letter words start with 'spo' (24)
7-letter words start with 'spo' (34)
8-letter words start with 'spo' (53)
9-letter words start with 'spo' (42)
10-letter words start with 'spo' (41)
11-letter words start with 'spo' (28)
12-letter words start with 'spo' (18)
13-letter words start with 'spo' (12)
14-letter words start with 'spo' (12)
15-letter words start with 'spo' (2)