null and void
Canceled, invalid, as in The lease is now null and void. This phrase is actually redundant, since null means “void,” that is, “ineffective.” It was first recorded in 1669.
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Words nearby null and void
Nukualofa, Nukus, NUL, null, nullah, null and void, nulla-nulla, Nullarbor Plain, null cell, null character, null hypothesis
The American Heritage® Idioms Dictionary
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