List: noun (common) (futsuumeishi)

popular  JLPT N1  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb 

• measure, step, action

popular  obsolete reading  search-only kanji form  JLPT N3  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb  intransitive verb  biology  geology 

• organization, organisation, formation
• structure, construction, setup, constitution
• system (e.g. railroad, transport, party, etc.)
• tissue
• texture (of a rock)
• weave (of a fabric)

popular  JLPT N1  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb  noun taking the genitive case particle の  adjective (generic) 

• search (esp. in criminal investigations), investigation, inquiry, enquiry

popular  JLPT N3  noun  noun (generic) 

• companion, partner, company
• other party, addressee, counterparty
• opponent (sports, etc.)

popular  JLPT N1  noun  noun (generic) 

• general meeting

popular  noun  noun (generic) 

• president (of an organization), director general, governor (of a central bank), party leader (esp. LDP)

popular  JLPT N5  noun  noun (generic)  colloquial 

• foot, paw, arm (of an octopus, squid, etc.)
• leg
• gait
• pace
• lower radical of a kanji
• means of transportation, (one's) ride
• money, coin

popular  JLPT N2  noun  noun (generic) 

• order, system, structure, set-up, organization, organisation

popular  JLPT N1  noun  noun (generic)  noun or participle taking the aux. verb する  intransitive verb 

• correspondence (to), equivalence
• suitability, coordination, matching, being appropriate (for)
• dealing with, coping with, handling, response, reception, reaction
• compatibility (with technology, software, etc.), capability, support (for)

popular  JLPT N2  noun  noun (generic) 

• measure, step, countermeasure, counterplan, countermove, strategy, preparation (e.g. for a test)