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15-Letter Words That Start With: SP

There are 44 15-letter words, 55 15-letter phrases and 0 15-letter abbr's that start with SP.

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Expand?WordSave?LengthUsagePointsType
splenectomizing15
31 verbv
Valid word for Scrabble US
specializations15
28 nounn
noun

• the act of specializing; making something suitable for a special purpose

• the special line of work you have adopted as your career

• (biology) the structural adaptation of some body part for a particular function

spectrographies15
25 nounn
Valid word for Scrabble US
splendiferously15
24 adverb, adjectiveadv, adj
Valid word for Scrabble US
spinthariscopes15
24 nounn
noun

• An early device for observing individual nuclear disintegrations.

sporangiophores15
23 nounn
noun

• stalk bearing one or more sporangia

spectroscopists15
23 nounn
Valid word for Scrabble US
sprightlinesses15
21 nounn
noun

• animation and energy in action or expression

spermatogenesis15
20 nounn
noun

• development of spermatozoa

spreadabilities15
20
Valid word for Scrabble US
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All 15 Letter Words

Words (44)
spermatogenesisspontaneousnessspecializationsspecialisationssprightlinessesspreadabilitiessporangiophoressplenectomizingsplendiferouslyspiritualnessesspinthariscopesspinelessnessesspermatogenesesspectroscopistsspectrographiessporangiosporessplenectomisingsplanchnologiesspironolactonesspirochaetaemiaspiritousnessessphygmographiesspheroidizationspheroidisationspheroidicitiessphericalnessessphaerosideritesphaerocrystalsspermatorrhoeasspermatogeneticspermatoblasticspeleotherapiesspeechificationspeechfulnessesspring-floweringspongioblastomaspirochaetaceaesphenisciformessphaerocarpalessphaerobolaceaespeculativenessspectroscopicalspearhead-shapedspanish-speaking
Phrases (55)
spur-of-the-momentspreading factorsports implementsports equipmentsports announcerspiritual domainspiny-headed wormspelling contestspeech communityspecific gravityspecial contractspeaking trumpetspatial relationspatial propertysparring partnersparkplug wrenchspanish languagespaghetti squashspruce gall aphidsprinkler systemspringer spanielspring vetchlingspotted weakfishspotted sea troutspotted eagle rayspore mother cellsplit infinitivesplanchnic nervespizella pusillaspizella arboreaspiritual leaderspiny-finned fishspinning machinespinal nerve rootspinal curvaturespinal accessoryspike suppressorspike microphonesphincter musclespelling checkerspeech therapistspecial pleadingspecial olympicsspecial interestspecial deliveryspeak of the devilspartium junceumspanish tamarindspanish psylliumspanish mackerelspanish lime treespanish civil warspanish chestnutspanish americanspace laboratory
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