This is the 8590th most frequent Spanish word.
ssa
The word "ssa" does not exist in standard Spanish.
The word 'ssa' is observed in the term 'esa', which means 'that' and is used as a demonstrative adjective.
Esa casa es muy bonita.
That house is very beautiful.
Here, 'ssa' appears in 'esa', functioning as a singular feminine demonstrative adjective referring to 'foto'.
En esa foto, se puede ver el mar.
In that photo, you can see the sea.
In this sentence, 'esa' is again used as a singular feminine demonstrative adjective, modifying 'ciudad'.