mastication
There are plenty of words that end with "tion", but none that start with K unfortunately!
nouns
nouns
Some singular nouns that end with 'tion' are:abbreviationabsolutionaccelerationactionaddictionaffectionafflictionagitationaggregationaviationobligationobservationoccupationoperationoptionorganizationornamentationosculationovationovulation
Anything with "tion" at the end of it
Nouns
attentions
Not necessarily. "Tion" is a suffix that is commonly added to verbs to form nouns, such as "information" (from "inform") or "celebration" (from "celebrate"). It transforms the verb into a noun denoting the action or result of the verb.
ionisation (anything with tion at the end)
Elation
keratinisation
combinationconfrontationcorrectionperfectionrepetitionintroductioninfectionaffectionaccommodationcommendationcommunicationammunitionimmunizationconductionreflectionrefractioncondensationinformationerectionejaculationpredeterminationdeterminationfiltrationinsulationeverprotion