Aquella means: that
"that afternoon"
Quien es (aquella)? (If 'she' is present/visible ('over there') Quien es ella? (If, e.g, asking in response to a name being mentioned)
'that one' is 'eso/esa' if it's near, 'aquel(lo)/aquella' if it's 'that one over there' The 'o' or 'a' ending depends on the gender (masculine or feminine) of the word describing 'that' - so 'aquel hombre' (that man over there); 'esa manzana' (that apple)
dog
afuras is not a spanish word.
gaka is not a Spanish word
"quidera" is not a Spanish word.
"Coll" is not a Spanish word.
It is the Spanish word for "fox".
The word for "after" in Spanish is "después".
I think what you mean is "What is the Spanish word for let?" because the word "let" is an English word, not Spanish. The Spanish word for "to let" is permitir. "Let me" is "permítame."
That's not a Spanish word.