* For the nationality: Filipino (with a capital F) is the proper noun.
* Example: "She is a Filipino citizen."
* For the language: Filipino (with a capital F) is the proper noun.
* Example: "Filipino is the national language of the Philippines."
* For the people: Filipinos (with a capital F) is the proper noun when referring to people of Filipino origin.
* Example: "Filipinos are known for their hospitality."
Note: It's important to remember that "Filipino" is a relatively new term. Historically, "Filipino" referred specifically to people from the Tagalog region. Today, it encompasses all people from the Philippines regardless of their ethnic background.