This is the 7325th most frequent Spanish word.
guess
The Spanish word for "guess" is "adivinar," meaning to estimate or assume without certainty.
The word "supongo" (I guess) is used here as a verb to express an assumption or supposition.
Supongo que él llegará tarde.
I guess he will arrive late.
In this case, "adivina" (guess) is an imperative form used to prompt someone to make a conjecture.
Adivina qué hay en la caja.
Guess what is in the box.
Here, "suposición" (guess) is used as a noun to refer to an estimated idea or hypothesis.