1. (verb) underpin
support from beneath
Synonyms: bear out, support, corroborate
2. (verb) corroborate, underpin, bear out, support
support with evidence or authority or make more certain or confirm
Synonyms: digest, abide, tolerate, support, plunk for, hold up, endure, back, stick out, fend for, patronise, back up, keep going, put up, corroborate, endorse, validate, stomach, defend, confirm, bear out, affirm, subscribe, brook, indorse, suffer, stand, sustain, patronize, underpin, substantiate, hold, plump for, patronage, bear
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Synonyms for underpin 
