Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun xx

2 senses of xx

Sense 1
twenty, 20, XX -- (the cardinal number that is the sum of nineteen and one)
       => large integer -- (an integer equal to or greater than ten)

Sense 2
XX -- ((genetics) normal complement of sex chromosomes in a female)
       => sex chromosome -- ((genetics) a chromosome that determines the sex of an individual; "mammals normally have two sex chromosomes")

Antonyms of adj xx

1 sense of xx

Sense 1
twenty, 20, xx -- (denoting a quantity consisting of 20 items or units)

INDIRECT (VIA cardinal) -> ordinal -- (being or denoting a numerical order in a series; "ordinal numbers"; "held an ordinal rank of seventh")

Similarity of adj xx

1 sense of xx

Sense 1
twenty, 20, xx -- (denoting a quantity consisting of 20 items or units)
       => cardinal (vs. ordinal) -- (being or denoting a numerical quantity but not order; "cardinal numbers")