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TOEFL® Vocabulary Practice

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definition: 
no longer in use
sentence: 
Over the next few decades the telephone would gradually make personal telegraphs obsolete, totally upending the industry.
Some people believe that writing instruments, such as pencils and pens, will soon be obsolete.
difficulty: 
medium
toefl frequency: 
2
toefl classification: 
adverb: 
adjective: 
obsolete
adverb sentence: 
adjective sentence: 
verb: 
verb sentence: 
noun: 
obsolescence
noun sentence: 
Planned obsolescence is the norm, even for marriages.