3
cast the lead(expression, idiom, depth)
3
choke
3
dead
3
discern(verb, grasp, understand, divine, comprehend)
3
dive(verb, descend, underwater)
3
divine(verb, grasp, understand, comprehend, discern)
3
dope out(verb, expression, check, mark, determine)
3
downright
3
flush
3
go into(verb, expression, phrasal verb)
3
graduate(verb, check, mark, determine, fit)
3
horizontal(adjective, direct, smooth, right, flat)
3
investigate
3
mark(verb, check, determine, sound, fit)
3
mete(verb, check, mark, determine, fit)
3
outright
3
perfect
3
perpendicularly
3
pierce(verb, grasp, understand, divine, comprehend)
3
plum
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APASmart Define. (2015). plumb thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/plumb/thesaurus/synonyms
ChicagoSmart Define. 2015. "plumb thesaurus" https://smartdefine.org/plumb/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, plumb thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/plumb/thesaurus/synonyms>.
MLASmart Define. "plumb thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/plumb/thesaurus/synonyms>