Noun

• S: (n) explosion, detonation, blowup (a violent release of energy caused by a chemical or nuclear reaction)
• S: (n) effusion, gush, outburst, blowup, ebullition (an unrestrained expression of emotion)
• direct hyponym / full hyponym
• S: (n) acting out (a (usually irritating) impulsive and uncontrollable outburst by a problem child or a neurotic adult)
• S: (n) cry (a fit of weeping) "had a good cry"
• S: (n) explosion (a sudden outburst) "an explosion of laughter"; "an explosion of rage"
• S: (n) flare (a sudden outburst of emotion) "she felt a flare of delight"; "she could not control her flare of rage"
• direct hypernym / inherited hypernym / sister term
• S: (n) expression, manifestation, reflection, reflexion (expression without words) "tears are an expression of grief"; "the pulse is a reflection of the heart's condition"
• S: (n) lamentation, mourning (the passionate and demonstrative activity of expressing grief)
• S: (n) act (a manifestation of insincerity) "he put on quite an act for her benefit"
• S: (n) effusion, gush, outburst, blowup, ebullition (an unrestrained expression of emotion)
• derivationally related form
• W: (v) effuse [Related to: effusion] (give out or emit (also metaphorically)) "The room effuses happiness"
• W: (adj) gushy [Related to: gush] (extravagantly demonstrative) "insincere and effusive demonstrations of sentimental friendship"; "a large gushing female"; "write unrestrained and gushy poetry"
• W: (v) gush [Related to: gush] (praise enthusiastically) "She raved about that new restaurant"
• W: (v) blow up [Related to: blowup] (get very angry and fly into a rage) "The professor combusted when the student didn't know the answer to a very elementary question"; "Spam makes me go ballistic"
• S: (n) enlargement, blowup, magnification (a photographic print that has been enlarged)