Obviously learning a couple of words in another language doesn’t really make you bilingual, or being able to say a few phrases. But there’s also clearly some point before full fluency where you can be considered bilingual, but how is it determined (formally or informally)? Is it purely vibes based, you’ll know when you see it kind of thing?
I’m vaguely familiar with the CEFR levels measuring how much of a language you speak, but if there’s a cutoff point for counting as bilingual in there somewhere I don’t know where.
I think I am basically 95% bilingual, my native language is not English, but it was thought in school from first grade (age 5 or 6) all the way to high school (17 years old), and then in post-highschool education, I also had 2 mandatory English courses. The thing is having learned so early is I was too young to realize when I could start entertaining a conversation in English without thinking because it was almost always like that for me.
I do think though that when you can think in your 2nd language without having to mentally translate in your head to your native language is when you’ve reached a level of fluency that is good enough to be called bilingual. I would probably say, if you can understand jokes and plays on words in your second language, that’s probably a good indicator that you are fluent