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There are 8 fifteen-letter words beginning with OBS

OBSERVABILITIESobservabilities n. Plural of observability.
OBSERVABILITY n. the state of being observable.
OBSERVATIONALLYobservationally adv. In an observational way.
OBSERVATIONAL adv. related to observation.
OBSESSIVENESSESOBSESSIVENESS n. OBSESSIVE, subject to obsession.
OBSTINATENESSESobstinatenesses n. Plural of obstinateness.
OBSTINATENESS n. OBSTINATE, stubborn.
OBSTRUCTIONALLYobstructionally adv. As, or by way of, an obstruction; obstructively.
OBSTRUCTIONAL adv. relating to obstruction.
OBSTRUCTIONISMSobstructionisms n. Plural of obstructionism.
OBSTRUCTIONISM n. deliberate interference with the progress or business esp. of a legislative body.
OBSTRUCTIONISTSobstructionists n. Plural of obstructionist.
OBSTRUCTIONIST n. someone, esp. a politician in a legislative assembly, who practises obstruction.
OBSTRUCTIVENESSobstructiveness n. The characteristic of being obstructive.
OBSTRUCTIVE n. serving to obstruct.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 15 words
  • Scrabble in French: 6 words
  • Scrabble in Spanish: 18 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 27 words


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