GRE TOEFL combustible Definition Capable of catching fire and burning easily. Example "Gasoline is a highly combustible liquid." Sign in to save GRE Quiz → TOEFL Quiz → ← combine combustion → Study tips featuring "combustible" Group Words Together by Emotional Tone Map Each Word Into a Connected Network Force Contrast Between Two Similar Words 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