KEY: Simplify.
SYN: Facilitate, disencumber, elucidate.
ANT: Embarrass, complicate, encumber, obscure.
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KEY: Simulate.
SYN: Feign, counterfeit, pretend, impersonate, assume.
ANT: Disresemble, discard, misrepresent, mis-exhibit, misbeseem.
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KEY: Simultaneous.
SYN: Synchronous, concomitant, concurrent.