This is the 2475th most frequent Catalan word.
substitució
Replacement or substitution.
Here, 'substitució' is used as a noun meaning the act of replacing or substituting someone or something.
La substitució del professor va ser inesperada.
The teacher's substitution was unexpected.
In this context, 'substitució' refers to the option of replacing or exchanging something, like items in a menu.
Aquest bufet ofereix substitució de plats als clients.
This buffet offers dish substitutions to clients.
'Substitució' is employed here in terms of replacing parts, applicable in a technical or service-related context.