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Adjective:
xxi
Being one
more than
twenty
-
twenty-one
,
21
Noun:
XXI
The
cardinal number
that is the
sum
of
twenty
and one
-
twenty-one
,
21
See also:
cardinal
Type of:
large integer
Encyclopedia:
XXI
Nearest
XV
xvi
XVI
XVII
xvii
xviii
XVIII
XX
xx
XXI
XXII
xxii
xxiii
XXIII
xxiv
XXIV
XXIX
xxix
XXL
XXV