أكْبَر: أعْظَم greater, larger, bigger; major; senior; superior

الأكْبَر the greatest, the biggest, the largest

أكْبَر (سِنّاً) older, elder

الأكْبَر (سِنّاً) the oldest, the eldest

اللّهُ أكْبَر God is great, God is the greatest