add
addition
Arabic numeral
arithmetic progression
bi-
billion
calculate
calculation
cardinal
cardinal number
coefficient
common denominator
constant
cube
cube root
D
decimal(n)
decimal(a)
decimal point
demi-
denominator
digit
divide
dividend
divisible
division
divisor
double-digit
double figures
eight
eighteen
eighth
eighty
eleven
equal(a)
equal(v)
equals sign
even
exponent
factor(n)
factor(v)
factorial
fifteen
fifth
fifty
fig.
figure
five
forty
four
fourteen
fourth
fraction
geometric progression
gross
HCF
hundred
improper fraction
indivisible
infinity
integer
L
logarithm
lowest common denominator
M
median(n)
median(a)
million
multiple
multiplication
multiplication sign
multiplication table
-nd
negative
nine
nineteen
ninety
ninth
No.
nos.
nought
number
numeral
numerator
numerical
O
oblique
one
ordinal number
pi
plot
point
positive
prime number
product
proper fraction
proportion
quadr-
quadrillion
quadruple
quotient
-rd
roman numeral
root
round
score
second
serial number
set
single figures
six
sixteen
sixty
square(n)
square(v)
squared
square root
-st
subtract
sum
take
ten
tenth
tertiary
tetra-
thirteen
thirty
thousand
three
three-quarter
threescore
tri-
trillion
twelve
twenty
twice
unit
V
vulgar fraction
whole number
X
zero

Date: | 1200-1300 |

Language: | Old French |

Origin: | nombre, from Latin numerus |

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number1 S1 W1

1## number

[countable]HMN a word or sign that represents an amount or a quantity [↪ numeral, figure]: ** be good/bad/no good with numbers** informal (=to be good, bad etc at calculating things using numbers) ➔ cardinal number, ordinal number, prime number, whole number

They wrote various numbers on a large sheet of paper.

Five was her lucky number.

2## phone

[countable]HMNTCT a phone number :

My new number is 502-6155.

3## in a set/list

[countable]HMN a number used to show the position of something in an ordered set or list : ➔ E number among their own number.

Answer question number 4.

a number 17 bus

18## grammar

[uncountable] technicalSLG the form of a word, depending on whether one thing or more than one thing is being talked about :

'Horses' is plural in number, while 'horse' is singular.