Definition/Meaning  Word/Phrase 
cardinal number that is the sum of nine and one; the base of the decimal system 
10
,
decade
,
ten
,
tenner
,
X

cardinal number that is the sum of ten and one 
11
,
eleven
,
XI

cardinal number that is the sum of eleven and one 
12
,
dozen
,
twelve
,
XII

cardinal number that is the sum of twelve and one 
13
,
baker's dozen
,
long dozen
,
thirteen
,
XIII

cardinal number that is the sum of thirteen and one 
14
,
fourteen
,
XIV

cardinal number that is the sum of fourteen and one 
15
,
fifteen
,
XV

cardinal number that is the sum of fifteen and one 
16
,
sixteen
,
XVI

cardinal number that is the sum of sixteen and one 
17
,
seventeen
,
XVII

cardinal number that is the sum of seventeen and one 
18
,
eighteen
,
XVIII

cardinal number that is the sum of eighteen and one 
19
,
nineteen
,
XIX

cardinal number that is the sum of one and one or a numeral representing this number 
2
,
deuce
,
II
,
two

cardinal number that is the sum of nineteen and one 
20
,
twenty
,
XX

cardinal number that is the sum of twenty and one 
21
,
twentyone
,
XXI

cardinal number that is the sum of twentyone and one 
22
,
twentytwo
,
XXII

cardinal number that is the sum of twentytwo and one 
23
,
twentythree
,
XXIII

cardinal number that is the sum of twentythree and one 
24
,
twentyfour
,
two dozen
,
XXIV

cardinal number that is the sum of twentyfour and one 
25
,
twentyfive
,
XXV

cardinal number that is the sum of twentyfive and one 
26
,
twentysix
,
XXVI

cardinal number that is the sum of twentysix and one 
27
,
twentyseven
,
XXVII

cardinal number that is the sum of twentyseven and one 
28
,
twentyeight
,
XXVIII
