station, edition, caution, portion
There are plenty of words that end with "tion", but none that start with K unfortunately!
Elation
seven letter words start with E and end with the letter A?
nouns
nouns
Some seven letter words that end with 'ure' are:capturecensureclosureconjureculturedentureepicureerasurefailurefeaturefissurefixturegesturelectureleisuremeasuremixturenurtureobscurepastureperjurepicturepostureprocureraptureruptureseizuretexturetonsuretortureventurevulture
Some words that end in "tion" include: nation, information, question, and explanation.
Nouns
attentions
Some seven letter words that end with P are:airshipbellhopcheckupdesktopdevelopgrownupgumdropketchupkinshipkneecapnonstopoverlapparsnipregrouprooftoproundupscallopstirrupwarshipwiretapworshipwriteup
There are no words in the English language that start with those letters, however there are thousands that end with 'tion'.
Some seven letter words that end in RA are:algebraamphorabravuracalderachimeracholeraMadeiraPandorasignoratempuraurethra