fiftieth

[ fif-tee-ith ]

adjective

1. next after the forty-ninth; being the ordinal number for 50.
2. being one of 50 equal parts.

noun

1. a fiftieth part, especially of one (1/50).
2. the fiftieth member of a series.

ˈfiftieth

/ ˈfɪftɪɪθ /

adjective

1. 1. being the ordinal number of fifty in order, position, time, etc. Often written: 50th
   2. ( as noun )

      the fiftieth in the series

noun

1. 1. one of 50 equal or approximately equal parts of something
   2. ( as modifier )

      a fiftieth part

2. the fraction equal to one divided by 50 ( 1 50 )

Word History and Origins

Origin of fiftieth¹

before 1000; Middle English fiftithe, Old English fīftigotha. See fifty, -th ²

Example Sentences

It weighs less than one fiftieth of a gram; significantly less than current state-of-the-art pacemakers, which weigh at least five grams.

From Science Daily

As it celebrates its fiftieth anniversary, the WTA is hoping the new partnership will increase the profile of women's tennis as well as commercial growth and the size of broadcast deals.

From BBC

Chess players the world over were following the game through faxes and telephone contact, and their collective question was answered at Fischer’s fiftieth move.

From Literature

And as the fiftieth anniversary of Independence Day approached, requests poured into Monticello and Quincy from across the land, asking the patriarchs to share their wisdom and memories about the meaning of it all.

From Literature

"As my term as High Commissioner draws to a close, this Council's milestone fiftieth session will be the last which I brief," she said, without giving a reason.

From Reuters