12-Letter Words Start with 'sp'

There are 110 12-letter words that start with 'sp'.

spaceflights	spacewalkers	spacewalking
spaciousness	spaghettinis	spanakopitas
spanokopitas	sparkplugged	sparsenesses
spasmolytics	spasticities	spatialities
spatterdocks	speakerphone	speakerships
spearfishing	spearheading	specialising
specialistic	specialities	specializing
speciational	specifically	speciosities
speciousness	spectaculars	spectatorial
spectrograms	spectrograph	spectrometer
spectrometry	spectroscope	spectroscopy
speculations	speechifying	speechlessly
speechwriter	speedballing	speedboating
speedinesses	speedometers	speedreading
speleologies	speleologist	spellbinders
spellbinding	spendthrifts	spermagonium
spermathecae	spermatocyte	spermatozoal
spermatozoan	spermatozoid	spermatozoon
spermophiles	spessartines	spessartites
sphericities	spheroidally	spherometers
spheroplasts	sphingosines	sphygmograph
spiculations	spiegeleisen	spiffinesses
spinnerettes	spinsterhood	spiritedness
spiritlessly	spiritualism	spiritualist
spirituality	spiritualize	spirochaetes
spirometries	spitefullest	spitefulness
splashboards	splendidness	splenomegaly
spokespeople	spokesperson	sponginesses
sponsorships	spookinesses	sporadically
sporogeneses	sporogenesis	sportfishing
sportfulness	sportinesses	sportiveness
sportscaster	sportswriter	sporulations
spotlessness	spotlighting	spottinesses
sprachgefuhl	spreadsheets	sprightfully
sprightliest	springboards	springhouses
springwaters	sprinklering	sprucenesses
spunkinesses	spuriousness

Note: These 110 12-letter words that start with 'sp' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words start with spe, spi, spa, spo, spr, spl, spu, sph, spy.

3-letter words start with 'sp' (2)
4-letter words start with 'sp' (22)
5-letter words start with 'sp' (100)
6-letter words start with 'sp' (173)
7-letter words start with 'sp' (255)
8-letter words start with 'sp' (326)
9-letter words start with 'sp' (273)
10-letter words start with 'sp' (199)
11-letter words start with 'sp' (144)
12-letter words start with 'sp' (110)
13-letter words start with 'sp' (62)
14-letter words start with 'sp' (46)
15-letter words start with 'sp' (15)