drop like flies rapidly collapse, die, or drop out in large numbers; "the contestants dropped like flies when the thermometer hit one hundred degrees"
fall over,
go over fall forward and down; "The old woman went over without a sound"
break down -
lose control of one's emotions; "When she heard that she had not passed the exam, she lost it completely"; "When her baby died, she snapped"
behave,
act,
do behave in a certain manner; "She carried herself well"; "he bore himself with dignity"; "They conducted themselves well during these difficult times"
dissolve declare void; "The President dissolved the parliament and called for new elections"
die suffer spiritual death; be damned (in the religious sense); "Whosoever..believes in me shall never die"
go to pieces,
fall apart lose one's emotional or mental composure; "She fell apart when her only child died"
break down -
make ineffective; "Martin Luther King tried to break down racial discrimination"
modify,
alter,
change make less severe or harsh or extreme; "please modify this letter to make it more polite"; "he modified his views on same-gender marriage"
break down -
cause to fall or collapse
bust,
break weaken or destroy in spirit or body; "His resistance was broken"; "a man broken by the terrible experience of near-death"
break down -
stop operating or functioning; "The engine finally went"; "The car died on the road"; "The bus we travelled in broke down on the way to town"; "The coffee maker broke"; "The engine failed on the way to town"; "her eyesight went after the accident"
change undergo a change; become different in essence; losing one's or its original nature; "She changed completely as she grew older"; "The weather changed last night"
go down,
crash be defeated; "If America goes down, the free world will go down, too"
burn out,
blow out,
blow melt, break, or become otherwise unusable; "The lightbulbs blew out"; "The fuse blew"
misfire fail to fire or detonate; "The guns misfired"
malfunction,
misfunction fail to function or function improperly; "the coffee maker malfunctioned"
break down -
make a mathematical, chemical, or grammatical analysis of; break down into components or essential features; "analyze a specimen"; "analyze a sentence"; "analyze a chemical compound"
synthesise,
synthesize combine so as to form a more complex, product; "his operas synthesize music and drama in perfect harmony"; "The liver synthesizes vitamins"
parse analyze syntactically by assigning a constituent structure to (a sentence)
separate divide into components or constituents; "Separate the wheat from the chaff"
chemical science,
chemistry the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
digest soften or disintegrate by means of chemical action, heat, or moisture
dissociate to undergo a reversible or temporary breakdown of a molecule into simpler molecules or atoms; "acids dissociate to give hydrogen ions"
crack break into simpler molecules by means of heat; "The petroleum cracked"
break down -
fall apart; "the building crumbled after the explosion"; "Negotiations broke down"