阿拉伯数字
基数词
缩写
格式
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序数词
0
zero/nought/nothing
-
-
1
one
1st
first
2
two
2nd
second
3
three
3rd
third
4
four
4th
fourth
5
five
5th
fifth
6
six
6th
sixth
7
seven
7th
seventh
8
eight
8th
eighth
9
nine
9th
ninth
10
ten
10th
tenth
11
eleven
11th
eleventh
12
twelve
12th
twelfth
13
thirteen
13th
thirteenth
14
fourteen
14th
fourteenth
15
fifteen
15th
fifteenth
16
sixteen
16th
sixteenth
17
seventeen
17th
seventeenth
18
eighteen
18th
eighteenth
19
nineteen
19th
nineteenth
20
twenty
20th
twentieth
21
twenty-one
21st
twenty-first
30
thirty
30th
thirtieth
40
forty
40th
fortieth
50
fifty
50th
fiftieth
60
sixty
60th
sixtieth
70
seventy
70th
seventieth
80
eighty
80th
eightieth
90
ninety
90th
ninetieth
100
a hundred
100th
hundredth
101
a hundred and one
101st
hundred and first
1,000
a thousand
1,000th
thousandth
1,001
a thousand and one
1,001st
thousand and first
2,000
two thousand
2,000th
two thousandth
10,000
ten thousand
10,000th
ten thousandth
100,000
a hundred thousand
100,000th
hundred thousandth
1,000,000
a million
1,000,000th
millionth
1,000,000,000
a billion
1,000,000,000th
Billionth