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There are 14 fifteen-letter words containing 2A, B, I, N, 2O and U

BIOACCUMULATIONbioaccumulation n. (Biology) The process by which substances accumulate in the tissues of living organisms; used especially…
BIOACCUMULATION n. accumulation in a biological system over time.
BIOACOUSTICIANSbioacousticians n. Plural of bioacoustician.
BIOASTRONAUTICSbioastronautics n. The study of the biological, behavioural and medical aspects of astronautics.
BIOASTRONAUTICS n. the science dealing with the effects of travel in space on living organisms.
HAEMOGLOBINURIAhaemoglobinuria n. (British spelling) Alternative spelling of hemoglobinuria.
HAEMOGLOBINURIA n. the presence of haemoglobin in the urine, also HEMOGLOBINURIA.
MOUNTAINBOARDERmountainboarder n. One who takes part in the sport of mountainboarding.
MOUNTAINBOARDER n. one who uses a mountainboard.
NOCTAMBULATIONSnoctambulations n. Plural of noctambulation.
NOCTAMBULATION n. sleepwalking.
ROUNDABOUTATIONROUNDABOUTATION n. going round and round.
SOMNAMBULATIONSsomnambulations n. Plural of somnambulation.
SOMNAMBULATION n. sleepwalking.
SUBASSOCIATIONSsubassociations n. Plural of subassociation.
SUBASSOCIATION n. a subordinate association.
SUBORGANISATIONSUBORGANISATION n. a subsidiary part of an organisation, also SUBORGANIZATION.
SUBORGANIZATIONsuborganization n. An organization belonging to a larger parent organization.
SUBORGANIZATION n. a subsidiary part of an organisation, also SUBORGANISATION.
SUBVOCALISATIONSUBVOCALISATION n. the act of inaudibly articulating speech with the speech organs, also SUBVOCALIZATION.
SUBVOCALIZATIONsubvocalization n. (Uncountable) The formation in thought of words or statements, which are expressed inwardly but not uttered aloud.
subvocalization n. (Countable) Subvocal words or statements so formed.
SUBVOCALIZATION n. the act of inaudibly articulating speech with the speech organs, also SUBVOCALISATION.
UNCOMPANIONABLEuncompanionable adj. Aloof and standoffish.
uncompanionable adj. Disagreeable or boorish.
UNCOMPANIONABLE adj. not companionable.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 75 words
  • Scrabble in French: 21 words
  • Scrabble in Spanish: 30 words
  • Scrabble in Italian: 14 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 19 words


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