os uteri;  cervical os;  orifice of the uterus
 vocal message;  speech;  statement;  prologue at the start of a kabuki performance
 oral;  verbal;  spoken;  parol
 quarrel;  argument;  row;  (verbal) dispute
 revealing (information, a secret, etc.);  disclosure;  telling;  letting out
 aperture;  bore;  calibre;  caliber
 clever;  intelligent;  well-behaved (esp. children and pets);  obedient; (arch.)  good (with words)
 gossip;  corner of the mouth
 breakthrough (research, etc.);  breach;  opening
 urethral opening;  urinary meatus
 crater;  caldera;  burner (e.g. on a furnace)
 interior of the mouth;  oral cavity
 oral instruction;  passing information by word-of-mouth;  oral tradition
 way of speaking;  intimation;  lips;  mouth;  snout
 (saying) with one voice;  unanimously;  in chorus;  in unison;  as one
 oral sex;  fellatio;  cunnilingus
 escape hatch;  escape door
 vent;  ventilation opening
 dictation;  verbal statement
 insertion slot (e.g. coins, tickets);  input port
 spoken language;  colloquial speech;  (modern) spoken Japanese;  written style based on (modern) spoken Japanese
 houses and inhabitants;  population
 oral tradition;  legend;  folklore
 entrance to a bay;  mouth of a bay
 trophi (mouthparts of an insect, etc.)
 passing on by word of mouth;  oral tradition
 harbor entrance;  harbour entrance
 speech;  manner of speaking
 access hole (usu. floor or ceiling trap);  inspection hole
 common talk;  talk of the town;  words of many people
 common talk;  talk of the town;  words of many people
 fuel filler opening;  tank pipe opening
 intake port;  water intake;  sluice gate
 verbal note (notes verbale);  written statement
 thirst;  dry mouth;  -dipsia
 waste-water port (of a dam, sewer, etc.);  freeing port (on a ship);  water hose outlet (for firefighting)
 keeping silent;  silence;  restraining (speech);  gagging;  muzzling
(arch.)  prisoner of war (Yayoi period);  slaves
 false charge;  slander;  defamation
 cyclostomes (eel-like jawless fishes with round mouths used for sucking)
 rim of bowl or vessel;  peristome
 population;  number of items, articles, etc.
 oratorical talent;  eloquence;  clever tongue;  glibness
 spoken language (as opposed to literary)
 sipunculan (any worm of phylum Sipuncula);  sipunculid
 taste;  flavor;  flavour;  deliciousness
 diffuser;  air supply outlet in air-conditioning system
 water supply pipe inlet/outlet (esp. on standpipes and dry risers)
 word form primarily used in spoken language
 men who were subject to taxes and forced labor (ritsuryo system)
 phlegmon in floor of oral cavity;  Ludwig's angina