ما معنى دعاء: "اللهم أكرم نزله ووسع مدخله" للميت؟

What was mentioned in the question is part of the Prophet's supplication (peace be upon him) for the deceased in the funeral prayer. The meanings of the two phrases are: "أكرم نزله" (make generous his abode) means make his dwelling, which has been prepared for him, noble, spacious, and good. And "وسع مدخله" (widen his entrance) means make his place of entry—his grave—spacious and comfortable, i.e., extend it as far as the eye can see.