12-Letter Words End with 'ning'

There are 81 12-letter words that end with 'ning'.

accessioning	appertaining	apportioning
ascertaining	breadwinning	caparisoning
carillonning	chairmanning	cocaptaining
damaskeening	dimensioning	disburdening
disciplining	disinclining	companioning
conditioning	constraining	contravening
guillotining	heartburning	heterodyning
honeymooning	hydroplaning	encrimsoning
enlightening	ensanguining	entertaining
misassigning	misbeginning	misbuttoning
misgoverning	misreckoning	foretokening
impassioning	interjoining	intertwining
nonfattening	nonhappening	partitioning
stanchioning	outbrazening	outdesigning
outreasoning	outreckoning	overcleaning
overlearning	overplanning	overtraining
quarantining	rataplanning	recautioning
reconsigning	reenthroning	reexplaining
refashioning	refreshening	preassigning
predestining	prehardening	preobtaining
preordaining	prescreening	previsioning
prizewinning	provisioning	remoistening
repatterning	resharpening	restationing
retightening	streamlining	sunscreening
suspicioning	tailspinning	trampolining
truncheoning	turpentining	underpinning
underrunning	undersigning	vermilioning

Note: These 81 12-letter words that end with 'ning' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words end with ining, oning, ening, nning, rning, aning, gning, wning, uning, mning, yning, lning, tning.

6-letter words end with 'ning' (22)
7-letter words end with 'ning' (106)
8-letter words end with 'ning' (107)
9-letter words end with 'ning' (184)
10-letter words end with 'ning' (184)
11-letter words end with 'ning' (132)
12-letter words end with 'ning' (81)
13-letter words end with 'ning' (28)
14-letter words end with 'ning' (23)
15-letter words end with 'ning' (6)