If people do not know who that person is, this is permissible, but do not give names

If i want to say something about someone,,Does it come under gossiping/slandering as long as i dont pick the names specifically.or can i say “someone said like this, someone did this ” Is the later part allowed?

Backbiting | February 13, 2014 4:17 am
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I used to backbite in my jaahiliya. I have Full regret now. ASked repentance for my self and for the one i have backbitten about with full deep repentance in my heart. Will this be sufficient inshaAllah