Numbers

Number

Word

Adjective

0

zero

1

one

first

2

two

second

3

three

third

4

four

fourth

5

five

fifth

6

six

sixth

7

seven

seventh

8

eight

eighth

9

nine

ninth

10

ten

tenth

11

eleven

eleventh

12

twelve

twelfth

20

twenty

twentieth

50

fifty

fiftieth

100

one hundred

one hundredth

1,000

one thousand

one thousandth

1,000,000

one million

one millionth

 

Days of the Week

Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday

Months of the year

1

January

2

February

3

March

4

April

5

May

6

June

7

July

8

August

9

September

10

October

11

November

12

December

(The new century began on Saturday January 1, 2000.)

 

Weights and measures

In Specialized English we use metric units to express amounts of things.
The common units are:

Length (or distance)

1 kilometer = 1000 meters
1 meter = 1000 millimeters
Also 1 meter = 100 centimeters

Volume (amounts of liquids)

1 cubic meter = 1000 liters
1 liter= 1000 cubic centimeters (often called "cc")

Weight (or mass)

1 kilogram = 1000 grams
1 gram = 1000 milligrams

Time

1 year = 12 months or 365 days
1 week = 7 days
1 day = 24 hours
1 hour = 60 minutes
1 minute = 60 seconds

 

US/UK English

The word list shows the way people write the words in American English . There are a few words which we would write differently in British English. Here is a list:

American > British

airplane > aeroplane

apologize > apologise

archeology > archaeology

baptize > baptise

behavior > behaviour

center > centre

color > colour

cooperate > co-operate

criticize > criticise

gray > grey

honor > honour

humor > humour

labor > labour

meter > metre

organize > organise

recognize > recognise

specialize > specialise

theater > theatre