A state of total confusion with no order:
Snow and ice have caused chaos on the roads.
Ever since our secretary walked out, the office has been in a state of total/utter chaos.
We muddled up the name labels and chaos ensued (= resulted).
Our house is in complete chaos at the moment.
There was chaos in the theatre when the bomb went off.
Computer failure has created chaos in the passport office.
Police are reporting traffic chaos on the motorways.