countable - Robuta Search

https://en.wiktionary.org/wiki/Category:Portuguese_countable_nouns

https://athyranstudios.com/countable

https://en.wiktionary.org/wiki/Category:Catalan_countable_suffixes

https://en.wiktionary.org/wiki/Category:Spanish_countable_nouns

https://www.thoughtco.com/countable-and-uncountable-nouns-explained-4086412

Guide to the use of 'much' and 'many' with countable and uncountable nous with examples, quizzes and explanations for ESL students.

https://easychair.org/publications/keyword/6wQ8

https://www.php.net/manual/en/function.is-countable.php

Verify that the contents of a variable is a countable value