List: word usually written using kana alone

popular  JLPT N2  usually written using kana alone  adverb 

• soon, shortly, before long, in a short time, in a little while
• having no time to ..., with no time to ...

popular  JLPT N1  noun  noun (generic)  usually written using kana alone  slang  suffix 

• attack, offence, offense, assault
• top (dominant partner of a homosexual relationship)
• barrage (of), flood (of)

popular  usually written using kana alone  noun  noun (generic) 

• Pyongyang (North Korea)

popular  usually written using kana alone  interjection 

• do your best, go for it, hang in there, keep at it

popular  JLPT N1  noun  noun (generic)  noun (suffix)  usually written using kana alone 

• past, after
• too (much), over- (e.g. eating)

popular  usually written using kana alone  noun  noun (generic) 

• haze (esp. in spring), mist
• dimness (of sight)

popular  JLPT N1  noun  noun (generic)  noun or participle taking the aux. verb する  transitive verb  abbreviation  usually written using kana alone 

• carrying (on one's person or in the hand)
• mobile phone, cell phone

popular  obsolete kanji  JLPT N4  noun  noun (generic)  usually written using kana alone  hanafuda 

• insect, bug, cricket, moth
• worm, roundworm
• thing inside one's body believed to influence one's thoughts and feelings, (one's) unconscious
• nervousness, fretfulness
• person devoted to one thing, single-minded person
• valve core
• mushi (type of game played with a stripped deck)

popular  noun  noun (generic)  horse racing  usually written using kana alone 

• corner, section, point, part
• one horn
• pillar (of a group, system, etc.), member (of an organization, etc.)
• first corner
• narwhal (Monodon monoceros)

popular  rarely used kanji form  search-only kanji form  usually written using kana alone  noun  noun (generic)  archaic 

• hometown, birthplace, native place, one's old home
• ruins, historic remains