- Word Combinations (noun)
|part of speech:
||the principal support or component of something.
Rice is a mainstay of the people's diet.Oil is the mainstay of the country's economy.
- backbone, pillar, rock
- similar words:
- anchor, brace, bulwark, prop, staple, stay, support
||a strong rope or cable that secures and stabilizes the mainmast of a sailing ship.