custom
cus-tom
noun
A traditional, widely accepted way of behaving or doing something in a society.
"It's a British custom to queue politely."
noun
Taxes or duties paid on goods imported or exported from a country.
"We had to pay customs on the new car."
Thesaurus
Synonyms: custom-made, bespoken, bespoke, custom-built, made-to-order, tailor-made, tailored, usage, usance, tradition, customs duty, impost
Antonyms: ready-made