Seeing your nephew dead in your dream indicates that you will not know what little means throughout your life, you will not be able to provide for your family and feed them due to the troubles you experience, you will take steps that will bring wealth, you will have good times, you will be betrayed because of a beloved relative, you will suffer great financial loss due to the work you put forward.
Also, seeing your nephew dead in your dream indicates that your earnings will decrease and therefore you will experience famine in the household, things will rise up in a short time, you will manage to get rid of your fears by facing them and thus you will make progress in your life, you will repent or be honored with Islam, if you see yourself in a crowded photo, you will be separated from some of the people you love, something you have wanted for a long time will not come true despite making a great effort and working hard.
Psychologically, seeing a nephew dead in a dream is interpreted as achieving something that has been desired for a long time and will bring great returns, doing everything you can materially and spiritually and taking a huge burden off your relative's back, doing things easily, saving money, getting whatever you want, getting rid of any troubles you have, having financial difficulties and being physically worn out.