popular  irregular okurigana  usually written using kana alone  adverb  numeric 

• quite, very
• 10^48, quindecillion

popular  JLPT N5  numeric  noun  noun (generic) 

• nine
• nine years of age
• twelve o'clock (old time system)

popular  obsolete kanji  JLPT N5  numeric  prefix  noun taking the genitive case particle の  adjective (generic)  suffix  noun  noun (generic)  noun (prefix)  card games 

• one, 1
• best
• first, foremost
• beginning, start
• a (single), one (of many)
• ace
• bottom string (on a shamisen, etc.)

popular  JLPT N1  numeric  noun  noun (generic) 

• 10^12, 1,000,000,000,000, trillion
• sign, omen, indication, portent

popular  yojijukugo  な adjective  adjective (generic)  noun  noun (generic)  numeric 

• mystery, something inexplicable, wonder, miracle
• unfathomable (of a Buddha's abilities)
• 10^64 (or 10^80)

popular  JLPT N4  numeric 

• hundred million, 100,000,000, 10^8

popular  JLPT N5  numeric  noun  noun (generic) 

• eight
• eight years of age
• two o'clock (old time system)

popular  obsolete kanji  JLPT N5  numeric  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic)  adverb  archaic 

• 10,000, ten thousand
• myriad
• everything, all
• various

popular  JLPT N5  numeric  noun  noun (generic) 

• six
• six years of age
• six o'clock (old time system)

popular  numeric 

• 1,000, one thousand