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general::
Phrase(s): buttress something up
1. Lit. to brace something; to provide architectural support for something. • We have to buttress up this part of the wall while we work on it. • The workers buttressed the wall up with heavy timbers. 2. Fig. to provide extra support, often financial support, for something. • We rounded up some money to buttress the company up through the sales slump. • The loan buttressed up the company for a few months.
McGrawhill's American Idioms And Phrasal Verbs