The most common noun in the English language is "time"

"The thing that struck me when I put together this list was that 90% of the top 100 words were one syllable, and that a large proportion were actually from Old English, meaning the basic words we use all the time in basic sentences are from before the Norman Conquest," the project manager said.

"We always put the focus on new words, changing language and words from other countries, but in reality the basic language we use has been the same for hundreds and hundreds of years."