position,addition,repetition,competition,condition,expedition
Some words ending in 'ics' are:athleticsballisticscriticsdomesticselasticsfabricsgraphicshieroglyphicsitalicskineticslinguisticsmathematicsneuroticsorthodonticsparamedicsquadriplegicsrelicsskepticsticsultrasonicsworkaholics
Some words ending with IND are:behindbindblindfindgrindhindkindmindrescindrindtamarindwind
Some words ending in SOME are:awesomegruesomehandsomelonesomenoisomequarrelsometiresomewinsome
Some six letter words ending in U are:bureaugateaulandaumilieumuumuu
Words ending in the suffix -ible include: edible incredible indelible sensible convertible
Words ending with "ition":AbolitionAcquisitionAdditionAmbitionAmmunitionApparitionAuditionCoalitionCompetitionCompositionConditionContritionDefinitionDemolitionDispositionEditionExhibitionExpeditionExtraditionIgnitionImpositionInhibitionInquisitionIntuitionMalnutritionOppositionPartitionPetitionPositionPrepositionProhibitionPropositionRecognitionRenditionRepetitionRequisitionSuperstitionTraditionTransitionTuitionWords ending with "sion":AbrasionAdmissionAggressionAllusionAscensionCessionCollisionCommissionCompassionCompressionCompulsionConcessionConclusionConcussionConfessionConfusionConversionConvulsionCorrosionDecisionDiffusionDimensionDiscussionDiversionDivisionEnvisionExclusionExcursionExplosionExpressionIllusionImplosionIncisionInvasionMansionObsessionSeclusionSessionTensionVision
Tuition is a word that ends with ition. Intuition, tradition, edition, rendition.
Repition
buttition notition hetition selbyition
inhibition exhibition intuition nutrition fruition
exhibition, addition, partition
ammunition, apparition, juxtaposition
ammunition, apparition, juxtaposition
extension, transfusion, explosion, confusion
ition words: Adhibition, Admonition, Ammunition, Apparition, Appetition, Apposition, Contrition, Definition, Demolition, Deposition, Ebullition, Exhibition, Expedition, Exposition, Imbibition, Imposition, Inhibition, Opposition, Repetition, Reposition and Transition itien words: Sorry, but there are none that are 10 letters in length. See Related Links for source.
the suffix for transition is ition or tion, I am not entirely sure.
words ending with -ain:braindrainrefraingrainchaplainexplaincontainfountainmaintainmountaincomplaindisdainretaindetainbargainsustainmainpainrainslaingainstraintrainchainattainplainremainobtainpertain