Inflected form of the verb "organize": simple past tense and past participle.
They organized a charity run last year.
Ils ont organisé une course caritative l'année dernière.
organizedpartizip perfekt Used as the past participle of the verb "organize" functioning adjectivally.
The carefully organized event ran without a hitch.
L'événement soigneusement organisé s'est déroulé sans accroc.