Ma'ruf is a word that is used in Islam to describe things that are good and right. If something is considered ma'ruf, that means it is something that should be encouraged and praised by everyone. This could include things like being kind to others, telling the truth, and standing up for what is right.
Basically, when you do something that is ma'ruf, it is like you are doing something that makes Allah happy and proud. It's like following the rules that Allah has set out for us, and doing things that will help us be better people and better Muslims.
If you hear the word ma'ruf, it's a reminder to try and do good things in your life and be kind to others. It's like a way of saying "let's do the right thing and be good people!" And that's always something we should strive for.