1(in) the same place
2together; in company (with)
3altogether; in total
4an instance of; a case of (murder, accident, dispute etc)
Examples
hé和nǐ你zài在yì qǐ一起，wǒ我hěn很gāo xìng高兴。
和你在一起，我很高兴。
I am quite pleased with you.
他想和我们一起去看电影。
He wants to come along with us to the movie.
他常和她一起去看电影。
He often goes with her to watch movies.