Oxford Advanced Learner's Dictionary:
job: work for which you receive regular payment. Ex. He's trying to get a job. / She took a job as a waitress.
work: 1 activity involving mental or physical effort done in order to achieve a purpose or result:
he was tired after a day's work in the fields
Work possui alguns sinômimos como: employment, career, profession, occupation, trade.
A palavra work possui muitas definições assim como a palavra job. Visite o site do dicionário Oxford que vc entenderá os contextos das duas palavrashttp://oxforddictionaries.com
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