twindom en · NOUN
Etymology
From twin + -dom.
Meanings
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(uncountable) The state, condition, or world of twins; twins collectively.
As an adult, twindom elicits more peculiar reactions. I have lost count of the number of men who have asked, nudge, nudge, wink, wink, whether we ever go out with the same bloke. The answer, by the way, is no.
2007, Randi Sabroe Inger Merete Sarborg, Randi Sabroe, Inger Merete Sarborg, To Clone Or Not to Clone - Page 35: