notre - (possessive adjective) our
nôtre - (possessive pronoun) ours

nuance - shade, hue, slight difference, nuance
nuancé - (adjective) qualified, balanced, nuanced; past participle of nuancer (to shade, qualify, nuance)

ou - (conjunction) or
où - (adverb) where

pâte - pastry, paste; pâtes - pasta
pâté - pâté

péché - past participle of pécher
pêche - peach, fishing

pécher - to sin
pêcher - to fish