Synonym: challenge, confront, disobey, disregard, ignore, resist. Similar words: defuse, defeat, define, defend, deface, defile, defame, defaced. Meaning: [dɪ'faɪ] 
v. 1. resist or confront with resistance 2. elude, especially in a baffling way 3. challenge.
v. 1. resist or confront with resistance 2. elude, especially in a baffling way 3. challenge. 
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1) Feed by measure and defy physician. 
2) Feed sparingly [by measure] and defy the physician.
3) They believe it is essential to defy convention.
4) I defy anyone to disprove the defendant's statements.
5) I wouldn't have dared to defy my teachers.
6) If you defy the law, you may find yourself in prison.
7) I defy you to prove your accusations.
8) I defy anyone to prove otherwise.
9) I defy you to prove I have cheated.
10) I defy you to prove that I have cheated.
11) Despite her wish to defy convention, she had become pregnant and married at 21.
12) Campaigners have said that they are prepared to defy the law in order to achieve their aims.
13) I defy you to tell where I've painted over the scratch on my car.
14) The towering pine and cypress trees defy frost and snow.
15) Her success has been so remarkable as to defy explanation.
16) I defy you to come up with one major accomplishment of the current Prime Minister.
17) I promised myself I'd defy all the prophets of doom and battle back to fitness.
18) Their life tenure means they defy patronage.
19) That trade that seems to defy conventional wisdom?
20) Who would dare defy the might of the Raj?
21) The conservatives surprised everyone by agreeing to defy the government and overspend by almost as much ... ten million.
22) Quarterback John Elway, 36,[http://sentencedict.com/defy.html] continues to defy the ravages of time.
23) He had been ready to defy the conventions and take on the world - and win! he thought.
24) This idea has spawned irrational diets that defy science, cause much inconvenience, and may even threaten nutrition.
25) Labour should do it now and defy the Tories to defend the buying of votes by plutocrats.
26) This was the first time that I dared to defy my mother.
27) The building leans so much that it seems to defy gravity.
28) Derbyshire folk may query the authenticity of this but I defy them not to enjoy the results.
29) Even if we live as pure as nuns, we defy the patriarchal order just by existing.
30) Through their various plights, the drama questions a world where feminine ideals regularly defy rational explanation.
More similar words: defuse, defeat, define, defend, deface, defile, defame, defaced, de facto, defense, deflect, deficit, defunct, defiant, definite, defiance, defeated, defender, deference, defensive, defendant, definable, aside from, defamatory, definitive, definition, definitely, deferential, deferentially, deforestation.