popular  JLPT N5  noun  noun (generic)  derogatory  usually written using kana alone  noun (prefix) 

• dog (Canis (lupus) familiaris)
• squealer, rat, snitch, informer, informant, spy
• loser, asshole
• counterfeit, inferior, useless, wasteful

popular  search-only kanji form  JLPT N3  noun  noun (generic)  slang  abbreviation  derogatory  noun (suffix)  food, cooking  counter 

• ball, sphere, globe, orb
• bead (of sweat, dew, etc.), drop, droplet
• ball (in sports)
• pile (of noodles, etc.)
• bullet
• bulb (i.e. a light bulb)
• lens (of glasses, etc.)
• bead (of an abacus)
• ball (i.e. a testicle)
• gem, jewel (esp. spherical; sometimes used figuratively), pearl
• female entertainer (e.g. a geisha)
• person (when commenting on their nature), character
• item, funds or person used as part of a plot
• egg
• okonomiyaki
• coin
• precious, beautiful, excellent

popular  JLPT N5  numeric  noun  noun (generic)  derogatory  abbreviation  sumo 

• four, 4
• four years of age
• ten o'clock (in the old time system)
• burakumin
• cross grips

popular  JLPT N1  noun  noun (generic)  slang  noun (suffix)  Internet slang  derogatory 

• marsh, swamp, wetland, bog, pond
• obsession, addiction, being hooked on, getting sucked into
• ugly man
• retard, mentally disabled person

popular  poetical term  pronoun  humble language  derogatory  adverb  interjection 

• oneself (itself, etc.)
• I, me
• you
• by oneself (itself, etc.)
• interjection expressing anger or chagrin

popular  derogatory  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic)  shogi 

• upstart, nouveau riche, new money, new rich, coming into wealth suddenly
• piece promoted to gold general

popular  noun  noun (generic)  noun taking the genitive case particle の  adjective (generic)  derogatory  prefix 

• one's nature, one's feelings, oneself
• plain, unadorned, undecorated, unadulterated, au naturel
• mere, poor
• exceedingly

popular  rarely used kanji form  noun  noun (generic)  derogatory 

• pig (Sus scrofa domesticus)
• pork
• fatso, fatty

popular  gikun or jukujikun  JLPT N5  usually written using kana alone  noun  noun (generic)  derogatory 

• glasses, eyeglasses, spectacles
• judgment, judgement, discrimination, discernment, insight
• four-eyes

popular  obsolete kanji  JLPT N3  usually written using kana alone  noun  noun (generic)  derogatory  archaic 

• monkey (esp. the Japanese macaque, Macaca fuscata), ape, non-human primate
• sly person
• idiot, hick
• sliding wooden bolt (for holding a door or window shut)
• clasp used to control the height of a pot-hook
• bathhouse prostitute