Salam 3likom.
How to say the word so/therefore (fr. alors) in
darija? Can aywa be used?
Matalan:
Lyoma ana mchgola bzzaf AYWA manqdrch ntlaqa m3ak.
Chokran bzzaf. 
therefore synonyms == for that reason, consequently, so, as a result, as a consequence, hence, that’s why…
all of them in darija means, therefore== dakchi 3lach
“aywa” is not “therefore” you can use “dakchi 3lach”
aywa it’s like saying watch out
watch out for that glass it’s gonna fall off the table
== aywa dak lkass ghaytih mn tebla