This is the 65th most frequent Catalan word.
també
Also.
In this sentence, "també" is used to add more information by introducing another element (basketball) to what was previously mentioned (football).
M'agrada el futbol i també el bàsquet.
I like football and also basketball.
Here, "també" is used to express agreement, indicating that someone shares the same opinion as was expressed earlier.
Jo també ho penso.
I also think so.
"També" in this context is used to indicate that in addition to others who are coming to the party, she will come as well.