0 used in questions and negatives to mean "something": --
Is there anything I can do to help?
Do you have anything less expensive?
I didn't know anything about computers till I started this job.
I was looking for a birthday present for my mother but I didn't find anything suitable.
Spending Christmas with him and his brother - I can't imagine anything worse!
"What did you do over the weekend?" "I don't think we did anything much."
2 any event, act, or object whatever, or (esp. in negative statements or questions) something: --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.