"American" "British"
Value
103 thousand thousand
106 million million
thousand million
109 billion
(milliard)
1012 trillion billion
thousand billion
1015 quadrillion
(billiard)
1018 quintillion trillion
thousand trillion
1021 sextillion
(trilliard)
1024 septillion quadrillion
thousand
1027 octillion quadrillion
(quadrilliard)
1030 nonillion quintillion
thousand
1033 decillion quintillion
(quintilliard)
"American" vs. "British" systems.
Names for “0”:
zero: formal scientific usage
naught / nought: mostly British usage
oh: used when spelling numbers (like telephone, bank account, bus line [British: bus route])
nil: in general sport scores, British usage ("The score is two–nil.")
nothing: in general sport scores, American usage ("The score is two–nothing.")
null: used technically to refer to an object or idea related to nothingness.
Ordinal Numbers:
1st first 11th eleventh 30th thirtieth
2nd second 12th twelfth (note "f", not "v") 40th fortieth
3rd third 13th thirteenth 50th fiftieth
4th fourth 14th fourteenth 60th sixtieth
5th fifth 15th fifteenth 70th seventieth
6th sixth 16th sixteenth 80th eightieth
7th seventh 17th seventeenth 90th ninetieth
8th eighth (only one "t") 18th eighteenth 21st twenty-first
9th ninth (no "e") 19th nineteenth 25th twenty-fifth
10th tenth 20th twentieth 32nd thirty-second