Halloween
In short
An annual celebration observed on 31 October that marks the eve of All Hallows' Day. It is widely known for themes of horror, the supernatural, and remembering the dead.
In plain words
People celebrate this holiday by dressing up in costumes and carving pumpkins. It is a time when many cultures focus on spooky stories and the afterlife. Children often go trick-or-treating to collect sweets.
A simple example
A child wears a superhero costume and knocks on neighbours' doors to ask for chocolate.
Why it matters
It is a major cultural event that drives huge seasonal spending on decorations and confectionery. It also serves as a traditional way to mark the transition into the autumn season.
Easy to mix up
Do not confuse it with All Saints' Day, which is the religious holiday held on 1 November.