Nouns
There are plenty of words that end with "tion", but none that start with K unfortunately!
There are no words in the English language that start with those letters, however there are thousands that end with 'tion'.
keratinisation
annunciation annotation annexation animation
Redemption, seduction, prevention, inspection, circumspection, introduction, station, ration, elation, inhalation, exhalation, notion, friction, abortion, nation, motion, solution, bastion, exemption, apparition.
There are plenty of words that end with "tion", but none that start with K unfortunately!
nouns
nouns
attentions
There are no words in the English language that start with those letters, however there are thousands that end with 'tion'.
I think the answer you want is "nouns" . tion and sion are suffixes that change a verb into a noun. eg. associate -> association . The trick is to know which ending to use.
Elation
combinationconfrontationcorrectionperfectionrepetitionintroductioninfectionaffectionaccommodationcommendationcommunicationammunitionimmunizationconductionreflectionrefractioncondensationinformationerectionejaculationpredeterminationdeterminationfiltrationinsulationeverprotion
keratinisation
A short list of words that end with the suffix -tion would include: information, sensation, communication, annunciation, confirmation, relation, elation, suffocation.
Examples of words ending in -tion:abductionactionauctionbeautificationcausationcautiondonationdurationeducationemotionfictionfractioninductionlotionmentionmotionnationnotionoperationoptionpartitionpetitionportionpositionpotionrotationsanitationsatisfactionsituationstationtaxationtuitionvacation
annunciation annotation annexation animation