List: noun (common) (futsuumeishi)

popular  search-only kanji form  noun  noun (generic) 

• mysterious person

popular  obsolete reading  noun  noun (generic) 

• ocean, sea, the deep

popular  noun  noun (generic)  colloquial 

• marine plant, seagrass
• seaweed

popular  noun  noun (generic)  noun or participle taking the aux. verb する 

• circumference, perimeter
• work outside the office
• outer tracks (in a loop or curve)

popular  noun  noun (generic) 

• squared timber, rectangular lumber

popular  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic) 

• barrier wall, bulkhead, partition, septum, diaphragm

popular  noun  noun (generic) 

• scholarly principle, scientific principle

popular  noun  noun (generic)  noun or participle taking the aux. verb する 

• easy victory, walkover
• easy peasy, child's play, cakewalk, walk in the park

popular  noun  noun (generic) 

• allocation, assignment, allotment

popular  noun  noun (generic) 

• activated carbon, activated charcoal