List: word usually written using kana alone

popular  JLPT N3  noun  noun (generic)  usually written using kana alone  abbreviation  Internet  Internet slang 

• fishing, angling
• change (for a purchase)
• clickbaiting
• trolling, bait, making deliberately inflammatory posts online

popular  search-only kana form  JLPT N5  noun  noun (generic)  usually written using kana alone  go (game)  noun or participle taking the aux. verb する  intransitive verb 

• hat, cap
• cap (move)

popular  ateji  search-only kanji form  usually written using kana alone  noun  noun (generic) 

• club, fraternity, sorority, clubhouse

popular  search-only kana form  search-only kanji form  noun  noun (generic)  usually written using kana alone  noh  stock market 

• doer, performer
• shite, protagonist, hero, leading part, main character
• speculator

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

• sidewise crawl (e.g. of a crab), crawling sideways
• leafhopper (insect), jassid
• sidewinder (Crotalus cerastes)
• levelling off (of prices, etc.), stabilizing

popular  JLPT N2  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic)  usually written using kana alone 

• purple, violet
• purple gromwell (Lithospermum erythrorhizon), red gromwell, red-root gromwell
• soy sauce

popular  search-only kana form  irregular okurigana  JLPT N1  usually written using kana alone  noun  noun (generic)  finance  card games  go (game)  counter  particle 

• end, finish, place to stop
• bound, limit, end
• delivery date (of a futures contract)
• finale (of a noh song), end of an act (in jōruri or kabuki), final performance of the day (in vaudeville)
• trump card
• king (court card; in mekuri karuta and unsun karuta)
• cut, separation of two groups
• counter for slices (esp. thick slices), counter for cuts (of fish, meat, etc.)
• only, just
• (ever) since, after
• continuously, remaining (in a particular state)

popular  rarely used kanji form  noun  noun (generic)  usually written using kana alone 

• bounce, spring, rebound
• momentum, impetus, impulse, stimulus, inertia
• moment, instant, impulse, chance

popular  usually written using kana alone  expression 

• about, concerning, as to, regarding

popular  JLPT N1  noun  noun (generic)  usually written using kana alone  food, cooking 

• ending, conclusion
• join, union, connecting
• knot, knotting
• onigiri, rice ball