What context can I use each word in?
Learn when and how to use these words with these examples!
thousand
Example
I have read a thousand books in my lifetime. [thousand: noun]
Example
The company has invested thousands of dollars in research and development. [thousands: plural noun]
Example
The population of the city is over a thousand people. [thousand: adjective]
kilo
Example
The car's weight is 1,000 kilograms. [kilograms: plural noun]
Example
The lab technician measured the chemical in kiloliters. [kilo: prefix]
Example
The computer's memory capacity is 8 gigabytes or 8,000 megabytes. [kilo: prefix]
Good things to know
Which word is more common?
Thousand is more common in everyday language, while kilo is more common in scientific and technical contexts.
What’s the difference in the tone of formality between thousand and kilo?
Kilo has a more technical or formal connotation than thousand, which is more neutral in connotation.