Pronunciation: /səˈsteɪnər/
noun a person or thing that provides support or sustenance
A1 A sustainer is someone who provides support or help.
A2 In a survival situation, a sustainer like food or water is essential.
B1 The community center relies on the sustainer donations from local businesses.
B2 The sustainer of the project was a wealthy philanthropist who believed in its mission.
C1 As a sustainer of the arts, she regularly donated to museums and galleries.
C2 The company's long-term success can be attributed to its ability to attract and retain sustainers of talent.
formal The sustainer of the organization's finances is the chief financial officer.
informal She's the sustainer of the group chat, always keeping the conversation going.
slang He's the sustainer of the party scene, making sure everyone has a good time.
figurative Water is known as the sustainer of life on Earth.
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