List: popular word

popular  JLPT N5  noun  noun (generic) 

• medicine, pharmaceuticals, (legal) drugs, pill, ointment, salve
• efficacious chemical (gunpowder, pesticide, etc.)
• (pottery) glaze
• (illegal) drug, narcotic
• small bribe

popular  JLPT N3  noun  noun (generic) 

• oil

popular  JLPT N3  noun  noun (generic) 

• friend, companion, comrade, pal
• accompaniment, companion (e.g. book), complement, accessory

popular  JLPT N4  noun  noun (generic)  abbreviation 

• play, playing, game
• pleasure, amusement, pastime, recreation, diversion
• play (in a mechanism, e.g. a steering wheel)
• flexibility (in a performance, art, etc.), freedom
• flyleaf

popular  JLPT N2  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic) 

• reserve, spare
• preparation, preliminaries

popular  rarely used kanji form  JLPT N3  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb 

• prevention, protection (against), precaution

popular  JLPT N3  noun  noun (generic) 

• day of the week

popular  JLPT N4  noun  noun (generic) 

• leaf, blade (of grass), (pine) needle

popular  JLPT N3  noun  noun (generic)  computing 

• component, factor, item (e.g. in list)
• element (e.g. in array), member (e.g. data structure)

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

• demand for, request