LOU

The sound-defining.part of many characters spoken as 'lou' is:

娄 = lou(2) = overripe

Of the 10 most common characters spoken as 'lou', 7 combine 娄 with a radical.

lou(1)

lou(2)

楼 = storey, floor; building

娄 = overripe

lou(3)

lou(4)