Suppose that we're playing a card game. One of the rules is that you can double the numerical value of a card if it fulfills a set of conditions.

So, there are two types of cards: those that can be doubled and those that can't.

Is there a single word that can be used to describe a card that "can be doubled"? Basically, double-able.

None of your cards is double-able!

Which sounds a bit awkward. I know that I can say

None of your cards can be doubled!

But I was wondering if there is a one-word solution.


Doubleable and doublable both seem fine. Which one is a question, I suppose, of whether you pronounce it with four syllables or three. I was looking for roots of Old English origin that might sound more natural, but the closest I found were:

  • twofoldtwofoldable

  • -lictwicelike

  • -bæretwobearing

None of these beats doublable for a modern English coinage.

  • Doublable has a precise meaning, but when you play cards, you're prone to engage in libation, and God be with ya then with those liquids and obstruents...
    – Talia Ford
    Sep 20 '13 at 6:17

Also consider:
twinnable, “That can be twinned”
dual, in the sense “Exhibiting duality; characterized by having two (usually equivalent) components”
duplicative, “of, related to, or being a duplicate”
redundant, “Superfluous; exceeding what is necessary” and also “Duplicating or able to duplicate the function of another component of a system...”

  • +1 for twinnable, but the rest seem misleading (without game specific definition).
    – bib
    Sep 20 '13 at 11:13


adj. capable of being duplicated.

  • 1
    This word has a less spot on meaning than doubleable has, but for an informal setting such as the given, I'd rather be imprecise and understood than precise and laughed at. ^__^
    – Talia Ford
    Sep 20 '13 at 6:36
  • You could specify it a bit more and say ‘reduplicable’—that means exactly what the asker is looking for, though I've only ever heard it about sounds and words in language that can be reduplicated. Sep 20 '13 at 8:14

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