12-Letter Words Start with 'ass'

There are 18 12-letter words that start with 'ass'.

assassinated	assassinates	assassinator
assaultively	assemblagist	assentations
asseverating	asseveration	asseverative
assignations	assimilating	assimilation
assimilative	assimilators	assimilatory
associations	assuagements	assumability

Note: These 18 12-letter words that start with 'ass' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words start with asse, assi, assa, assu, asso, assw, assh, assl.

5-letter words start with 'ass' (4)
6-letter words start with 'ass' (14)
7-letter words start with 'ass' (24)
8-letter words start with 'ass' (43)
9-letter words start with 'ass' (54)
10-letter words start with 'ass' (31)
11-letter words start with 'ass' (27)
12-letter words start with 'ass' (18)
13-letter words start with 'ass' (18)
14-letter words start with 'ass' (8)
15-letter words start with 'ass' (8)