What accents are there in bienvenido?

The word "bienvenido" is a Spanish word and there's no accent in it. It's important to note that the spelling of the word is already correct with no accent marks.

Here's why:

* "Bien" is a word in Spanish, meaning "well," and doesn't need an accent.

* "venido" is the past participle of the verb "venir" (to come), and also doesn't need an accent.

Therefore, "bienvenido" is spelled correctly without any accent marks.