List: word usually written using kana alone

rarely used kanji form  usually written using kana alone  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb 

• plating (chrome, gold, silver, etc.), coating, gilding, gilt
• pretense, pretence, simulation

popular  rarely used kanji form  JLPT N5  usually written using kana alone  pre-noun adjectival  adjective (generic) 

• this
• last (couple of years, etc.), these, past, this
• you (as in "you liar")

gikun or jukujikun  usually written using kana alone  noun  noun (generic) 

• pit of the stomach, solar plexus

obsolete reading  JLPT N1  usually written using kana alone  noun  noun (generic) 

• spots, speckles, mottles

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

• spray, splash

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

• Buddha

popular  gikun or jukujikun  rarely used kanji form  JLPT N2  usually written using kana alone  noun  noun (generic) 

• screw
• key (of a clock, watch, etc.), spring

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

• as (it is), remaining (in a state), keeping (the same), leaving (unchanged)
• with (e.g. one's eyes closed, the light on), while (e.g. standing, alive), as
• as (one pleases, one is told, etc.), according to
• sic

rarely used kanji form  JLPT N1  usually written using kana alone  humble language  noun  noun (generic)  colloquial 

• son
• punk, brat
• penis

rarely used kanji form  onomatopoeic or mimetic word  usually written using kana alone  adverb  adverb taking the と particle 

• carefully, closely, attentively, profoundly, deeply, at length