Silver was once a mainstay in medical treatments for its antimicrobial properties.

Lawrence has become a mainstay of England's midfield, starting their past 10 Tests.

He made his breakthrough in the 2016-17 campaign and has been a mainstay of the first team ever since, regularly playing more than 40 games a season.

“This began for me by getting the news that one of my parents has a degenerative disease that will end their life,” indie mainstay Jacobs, 52, says regarding “Three Daughters.”

John Steinbeck's text, set in the 1930s, has been a mainstay of the English literature qualification for many years.