Costumes:Costumes, mask, make-up, pirate.

Trick or treat: trick or treat, candy, pillowcase, jack a latern , candle

Monsters; vampire, mummy, werewolf.

Witches; witch, pointy, black-cat, broom, spell, frog,couldrons

Haunted houses; haunted, ghost, boo, cobwebs,bats

( this is the first question))