XX as a noun: - 1
- 2
xx as an adjective: - 1
XX
noun
1 XX
The cardinal number that is the sum of nineteen and one.
synonyms: 20, twenty.
Dutch: twintig
2 XX
genetics Normal complement of sex chromosomes in a female.
adjective
1 xx
Denoting a quantity consisting of 20 items or units.
synonyms: 20, twenty.
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