Pronunciation: /ˈmeɪnˌsteɪ/
noun the chief support of a system or organization
A1 Bread is a mainstay in many diets around the world.
A2 The mainstay of the local economy is agriculture.
B1 The mainstay of the company's success is its loyal customer base.
B2 The mainstay of the healthcare system is the dedication of its medical professionals.
C1 Education is considered the mainstay of a prosperous society.
C2 The mainstay of the country's defense strategy is its strong military presence.
formal The mainstay of our business is our loyal customer base.
informal Pizza has always been the mainstay of our Friday night dinners.
slang Coffee is the mainstay of my morning routine.
figurative Education is the mainstay of a successful career.
mainstayed
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more mainstay
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have mainstayed
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