fifty

The word “fifty” means the number after forty-nine and before fifty-one; 50. In plain terms, the number 50, or a fifty-unit banknote.

“Fifty” is pronounced FIHF-tee (/ˈfɪfti/ in IPA).

Here is “fifty” used in a sentence: “The room was filled with fifty guests.”

Depending on how it is used, “fifty” can be a num and a noun.

The word “fifty” comes from Old English. From Old English fiftig, meaning literally "five tens.".

“Fifty” is a fairly common word in modern English, usually learned at around the A1 level.

“Fifty” has 2 distinct senses listed in this dictionary. The most common is: the number after forty-nine and before fifty-one; 50.

Compound numbers from twenty-one to ninety-nine are hyphenated, so you write 'fifty-two' and 'fifty-five.' 'Fifty' on its own takes no hyphen, and in larger numbers such as 'fifty thousand' it stays a separate word.

'Fifty' is the cardinal number 50 used for counting, while 'fiftieth' is the ordinal form showing position in a sequence, as in a fiftieth birthday or the fiftieth floor.

Many style guides spell out whole numbers below one hundred in running prose, so 'fifty' is common in formal text. Figures like '50' are preferred in technical, statistical, or informal writing and alongside units.