This is the 4398th most frequent Spanish word.
vi
"Vi" is the first-person singular preterite form of "ver," meaning "I saw."
Here, 'vi' is the past tense first-person singular form of the verb 'ver', meaning 'to see', used to describe an event that was witnessed.
Ayer vi una película interesante.
Yesterday I watched an interesting movie.
In this context, 'vi' again is the past tense of 'ver', used for perceiving an action or process.
Vi cómo solucionaste el problema.
I saw how you solved the problem.
Here, 'vi' is used in a negative context to express not perceiving something visually.