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Are you saying that because certain words aren't in your vocabulary or known to you, then they're not allowable? This is the whole point of using dictionaries as a reference for allowable words. Is Random House not a good enough source?
The OSD changes every year, so it's quite possible that those 3 words were recent additions. I don't have one on hand, so I can't verify that, however.
(kaŝi) Kiam vi movas en ludo, vi povas elekti kio aperu poste, elektante la koncernan opcion en la listo apud la butono 'Sendi'. (pauloaguia) (Montri ĉiujn konsilojn)