Definition/Meaning  Word/Phrase 
mathematical element that when added to another number yields the same number 
0
,
cipher
,
cypher
,
nought
,
zero

smallest whole number or a numeral representing this number 
1
,
ace
,
I
,
one
,
single
,
unity

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 product of 10 and 100 
1000
,
chiliad
,
G
,
grand
,
K
,
M
,
one thousand
,
thou
,
thousand
,
yard

cardinal number that is the product of ten and one thousand 
10000
,
myriad
,
ten thousand

cardinal number that is the fifth power of ten 
100000
,
hundred thousand
,
lakh

number that is represented as a one followed by 6 zeros 
1000000
,
meg
,
million
,
one thousand thousand

number that is represented as a one followed by 9 zeros 
1000000000
,
billion
,
one thousand million

number that is represented as a one followed by 12 zeros; in the United Kingdom the usage followed in the United States is frequently seen 
1000000000000
,
billion
,
one million million

number that is represented as a one followed by 12 zeros 
1000000000000
,
one million million
,
trillion

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 product of ten and twelve 
120
,
great hundred
,
long hundred

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 equal to one dozen gross 
1728
,
great gross

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