Halloween –

Spanish: Víspera de Todos los Santos

French: Halloween

Portuguese: Dia das Bruxas

Italian: Halloween

Dia de los muertos

English: Day of the dead

French: Le jour des morts

Portuguese: Dia dos Mortos

Italian: Giorno della morte

Pumpkin –

Spanish: Calabaza

French: Citrouille

Portuguese: Abóbora

Italian: Zucca

Candy –

Spanish: Caramelo

French: Bonbons

Portuguese: Doce

Italian: Caramella

Costumes –

Spanish – Disfraces

French – Déguisements

Portuguese – Fantasias

Italian – Costumi

Cites:

https://www.fastweb.com/student-news/articles/october-checklist-for-high-school-seniors

https://www.google.com/search?q=google+translate&rlz=1CAHZJV_enUS862&oq=google+translate&aqs=chrome..69i57j0i131i433i512j0i512j0i131i433i512j0i131i433j0i131i433i512j0i433i512j0i131i433j0i433i512j0i271.2914j0j7&sourceid=chrome&ie=UTF-8&safe=active&ssui=on