12-Letter Words Start with 'so'

There are 62 12-letter words that start with 'so'.

sociableness	sociobiology	sociologeses
sociological	sociologists	sociometries
sockdolagers	sockdologers	soddennesses
softheadedly	solarization	soldierships
solemnifying	solemnnesses	solicitation
solicitously	solidaristic	solidarities
solifluction	soliloquised	soliloquises
soliloquists	soliloquized	soliloquizer
soliloquizes	solitariness	solmizations
solubilising	solubilities	solubilizing
somatologies	somatomedins	somatopleure
somatostatin	somatotropin	sombernesses
somersaulted	somersetting	somnambulant
somnambulate	somnambulism	somnambulist
somnifacient	songstresses	songwritings
sonneteering	sonographies	sonorousness
soothingness	soothsayings	sophisticate
soporiferous	sordidnesses	soullessness
soundproofed	southeastern	southeasters
southernmost	southernness	southernwood
southwestern	southwesters

Note: These 62 12-letter words that start with 'so' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words start with sol, sou, sor, soc, son, som, sof, sop, soa, sod, soo, sob, sov, sow, sot, soi, soy, soj, sog, sok, soz, sos, soe, sox.

3-letter words start with 'so' (12)
4-letter words start with 'so' (49)
5-letter words start with 'so' (87)
6-letter words start with 'so' (127)
7-letter words start with 'so' (183)
8-letter words start with 'so' (211)
9-letter words start with 'so' (194)
10-letter words start with 'so' (149)
11-letter words start with 'so' (91)
12-letter words start with 'so' (62)
13-letter words start with 'so' (46)
14-letter words start with 'so' (31)
15-letter words start with 'so' (16)