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jamproof

[ jam-proof ]
/ ˈdʒæmˌpruf /
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adjective
built so as to prevent jamming: a jamproof copying machine.
QUIZ
QUIZ YOURSELF ON "WAS" VS. "WERE"!
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“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Origin of jamproof

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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