It is used to describe the extreme importance of something...
For instance, "George Washington played a pivotal role in the Revolutionary War."
Yes he has
Julia Tuttle.
David Farragut
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An American social reformer and feminist who played a pivotal role in the women's suffrage movement.
One of the pivotal people in the formation of the NAACP was W.E.B. Du Bois. Also pivotal were Ida B. Wells, Henry Moskowitz, Mary White Ovington, and William Walling.
Valuers of property, jewellery play a pivotal role in the society, as their acts help to usher in the basic needs of common people. Thus, their importance in the society is immese.
The Cossacks
The character Vadivu in the serial "Thangam" is played by actress Neelima Rani. She portrays the role of Vadivu, a pivotal character in the show.
pivotal
Trucks play quite a pivotal role as they are used to transport heavy or large goods. Trucks are normally used to transport goods over long distances.