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
A short list of words that end with the suffix -tion would include: information, sensation, communication, annunciation, confirmation, relation, elation, suffocation.
attentions
Anything with "tion" at the end of it
Nouns
keratinisation
combinationconfrontationcorrectionperfectionrepetitionintroductioninfectionaffectionaccommodationcommendationcommunicationammunitionimmunizationconductionreflectionrefractioncondensationinformationerectionejaculationpredeterminationdeterminationfiltrationinsulationeverprotion
Elation
ionisation (anything with tion at the end)