There are no eight-letter words in the English language that end in vase.
ExpressoFalsettoFandango.
Question.
astonish
Hanukkah
apparentaffluentrepresent
Olympiad
linguini
Copious
avoidingbreakingcrawlingdrinkingenduringfloatingguessinghumoringinvitinglisteningmountingnoticingorderingpressingprintingquittingroastingstealingtreadingunendingvouchingwateringyielding
One example of an 8-letter word ending with "ing" is "starting." It refers to the act of beginning something or initiating a process.
yourself yourself
credenza