multiple condition store in variable and use as if condition in awk - awk

Question

table1.csv:
33622|AAA
33623|AAA
33624|BBB
33625|CCC
33626|DDD
33627|AAA
33628|BBB
33629|EEE
33630|FFF
Aims:
33622|AAA
33623|AAA
33624|BBB
33625|CCC
33626|DDD
33627|AAA
33628|BBB
Using command:
awk 'BEGIN{FS="|";OFS="|"} {if($2=="AAA" && $2=="BBB" && $2=="CCC" && $2=="DDD"){print $1,$2}}' table1.csv
However, trying to be more automatic, since the categories may increase.
list1.csv:
AAA BBB CCC DDD
list=`cat list1.csv`
awk -v list=$list 'BEGIN{FS="|";OFS="|"} {if($2==list){print $1,$2}}' table1.csv
Which means, can I stored $2=="AAA" && $2=="BBB" ....... into a variable by using list1.csv?
Expected output:
33622|AAA
33623|AAA
33624|BBB
33625|CCC
33626|DDD
33627|AAA
33628|BBB
So, any suggestion on storing the multiple condition in one variable?
Thanks all!

Answer 1

$ awk 'NR==FNR{for(i=1;i<=NF;i++)a[$i];next}FNR==1{FS="|";$0=$0}($2 in a)' list table
Output:
33622|AAA
33623|AAA
33624|BBB
33625|CCC
33626|DDD
33627|AAA
33628|BBB
Explained:
$ awk '
NR==FNR { # process list
for(i=1;i<=NF;i++) # hash all items in file
a[$i]
next # possibility for multiple lines
}
FNR==1 { # changing FS in the beginning of table file
FS="|"
$0=$0
}
($2 in a)' list table

Answer 2

Almost same logic Like James Brown's nice answer, just adding here a small variant which is setting field separator in Input_file places itself.
awk 'FNR==NR{for(i=1;i<=NF;i++){arr[$i]};next} ($2 in arr)' list FS="|" table
Explanation: Adding detailed explanation for above.
awk ' ##Starting awk program from here.
FNR==NR{ ##Checking condition which will be TRUE when list is being read.
for(i=1;i<=NF;i++){ ##Going through all fields here.
arr[$i] ##Creating arr with index of current column value here.
}
next ##next will skip all further statements from here.
}
($2 in arr) ##Checking condition if 2nd field is present in arr then print that line from table file.
' list FS="|" table ##mentioning Input_file(s) here and setting FS as | before table file.