List: transitive verb

popular  JLPT N3  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb  intransitive verb  usually written using kana alone 

• betterment, improvement
• kaizen (Japanese business philosophy of continuous improvement)

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

• holding (a conference, exhibition, etc.), opening, hosting (e.g. the Olympics)

popular  JLPT N3  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb  intransitive verb 

• start, commencement, beginning, initiation

popular  JLPT N2  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb 

• opening (a door, window, etc.), leaving open
• opening up (e.g. to the public), allowing (public) access

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

• securing, obtaining, ensuring, guarantee, maintaining
• belay, belaying

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

• monitoring, watching, observation, surveillance, guarding, supervision, lookout

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

• relief, mitigation, alleviation, relaxation (of restrictions, tensions, etc.), easing, softening

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

• sightseeing, tourism

popular  JLPT N2  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb 

• observation, survey, measurement
• opinion, prediction, thinking

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

• planning, plan, project, arrangements