No definitions found for 'not understand'
Perhaps one of these:
natant,
neodamode,
not intrusive,
nutant,
nude matte,
not in the mood,
natantly,
newton, ut,
not entirely unlike x,
notanda,
nut and bolt,
newton, tx,
nationwide,
nationhood,
notandum,
new town, nd,
natantia,
neottia nidus-avis,
notionate