Difference in English
| Costume | What you wear for Halloween |
| Custom | A traditional way of doing things |
Custom can also mean “tailored”.
Imagine your family has a custom of always wearing funny costumes during holiday dinners. So, when you think of “custom” in the sense of tradition, imagine everyone at the table in outrageous outfits.
Examples
| Mark wore a pirate costume for Halloween. |
| In our house, it is the custom for everyone to wash their own dishes. |


Costume and custom sound different too:
| Costume | |
| Custom |
Other examples with costume and custom
| My swimming costume is too tight. |
| Tom invited us to a costume party. |
| Elena hired a costume for the party. |
| The custom originated in China. |
| This is an old Canadian custom. |
| All of my clothes are custom made. |
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