This word is not acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. capability of existing or happening or being true

"The fire raged until the outfit slipped beneath the surface. proles were unable to tight off the flow from the well before the set up cost submerged, raising the possibleness that oil sacked be gushing into Gulf waters."

being    beingness    existence   

potentiality    achievability    attainableness    opportunity    potency   

passiveness