vs
QUICK ANSWER
"What happened" is a form of "what happened", a phrase which is often translated as "qué pasó". "S" is a noun which is often translated as "la s". Learn more about the difference between "s" and "what happened" below.
s(
ehs
)A noun is a word referring to a person, animal, place, thing, feeling, or idea (e.g., man, dog, house).
1. (letter)
An abbreviation is the shortened form of a word or group of words (e.g., "UFO" = "unidentified flying object"; "p." = "page").
a. s
The bullet is moving at a speed of 12 m/s.La bala se desplaza a una velocidad de 12 m/s.
There are 3,600 s in 1 h.En 1 h hay 3,600 s.
what happened(
wuht
hah
-
pihnd
)A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)
a. qué pasó
Valentin wouldn't tell exactly me what happened, but I could tell that whatever it was, it was bad.Valentín no me quiso decir exactamente qué pasó, pero sabía que fuera lo fuera, era malo.
b. lo que pasó
What happened happened, and it's too late to turn back now.Lo que pasó pasó, y ya es tarde para dar marcha atrás.