GRE guffaw Definition A loud, unrestrained burst of laughter. Example "He let out a hearty guffaw at the comedian's joke." Sign in to save GRE PDF — $25 ← guess guile → Related words GRE awe GRE smithereens GRE abacus SAT abase GRE abash GRE abate GRE abbreviate GRE abbreviation SAT abdicate SAT abdomen GRE abduct GRE aberrant