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

pécheur - sinner
pêcheur - fisherman

prête - (feminine adjective) ready
prêté - past participle of prêter (to lend)

rate - spleen
raté - past participle of rater (to fail, miss)

relâche - rest, respite
relâché - loose, lax

reste - rest, leftover
resté - past participle of rester (to stay)

retraite - retreat, retirement
retraité - retired person; past participle of retraiter (to reprocess)

rot - belch, burp
rôt - (archaic) roast

roue - wheel
roué - (adj) cunning, sly; un roué - cunning/sly person; past participle of rouer (to beat/thrash)

roule - first and third person singular of rouler (to wheel/roll along)
roulé - curved, rolled