Synonyms of 'defect from something or someone'
▷ See defect
leaveDictionary, abandon, desert
He defected from the party twenty years ago.
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If you abandon a place, thing, or person, you leave the place, thing, or person permanently or for a long time, especially when you should not do so.
He claimed that his parents had abandoned him.
If people or animals desert a place, they leave it and it becomes empty.
Poor farmers are deserting their fields and looking for jobs.
If you leave an institution, group, or job, you permanently stop attending that institution, being a member of that group, or doing that job.
He left school with no qualifications.
get out of
drop out of
Thesaurus for defect from something or someone from the Collins English Thesaurus