This is the 238th most frequent French word.
passer
To pass, to go (by), to spend (time).
In this sentence, 'passer' means to stop by or visit.
Je vais passer chez toi ce soir.
I will stop by your place tonight.
Here, 'passer' is used to mean taking a test or an exam.
Elle veut passer son examen demain.
She wants to take her exam tomorrow.
In this phrase, 'passer' conveys the concept of time passing or flowing.