"Live fast, die young, leave a good looking corpse." I find this one very interesting. it's from the movie "knock on any door" and it was said by Nick Romano.
I've never heard "tweep" or "gamification". I think it's ok to add them to the dictionary. Words are continually added to the dictionary as they're are invented.
As others have said, you don't have to teach her languages one by one. I speak three languages so i think your child would be able to learn all three languages without a problem.
I always use the word cheque to mean banker's cheque. That's what i was taught in school. I always thought 'check' was the american version of that word.
I did! I was taught English in school from when i was a kid. All children are taught English in my country but only a few speak it fluently since we also have other native languages which people prefer to speak.
The best and fastest way to learn a language is to be around people who only speak that language. That 'forces' you to grasp the language and that way it becomes more natural to you.
I don't think that would happen especially when the languages are so different. But if you don't want to take chances then you might want to learn the languages at different times.