This is the 168th most frequent Spanish word.
segunda
"Segunda" means "second" in English, referring to order, rank, or time.
Here, 'segunda' is used as an ordinal number to indicate the sequential order as 'second'.
Es mi segunda vez aquí.
It's my second time here.
In this context, 'segunda' classifies the referent (option) in a sequential list, indicating its position.
La segunda opción parece mejor.
The second option seems better.
In this sentence, 'segunda' describes the ordinal number associated with 'planta', indicating the floor level designation in a building.