Olympiad
ExpressoFalsettoFandango.
Question.
Hanukkah
astonish
avoidingbreakingcrawlingdrinkingenduringfloatingguessinghumoringinvitinglisteningmountingnoticingorderingpressingprintingquittingroastingstealingtreadingunendingvouchingwateringyielding
linguini
apparentaffluentrepresent
Copious
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
scottish