minus (minuses plural )
1 conj You use minus to show that one number or quantity is being subtracted from another.
(=less) (Antonym: plus)
One minus one is zero..., They've been promised their full July salary minus the hardship payment.
2 adj Minus before a number or quantity means that the number or quantity is less than zero.
ADJ amount
The aircraft was subjected to temperatures of minus 65 degrees and plus 120 degrees.
3 (Antonym: plus)
Teachers use minus in grading work in schools and colleges. `B minus' is not as good as `B', but is a better grade than `C'.
I'm giving him a B minus.
4 prep To be minus something means not to have that thing.
(=without)
The film company collapsed, leaving Chris jobless and minus his life savings.
5 n-count A minus is a disadvantage.
INFORMAL
(=drawback) (Antonym: plus)
The minuses far outweigh that possible gain...
6 You use plus or minus to give the amount by which a particular number may vary.
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plus or minus phrase PHR amount
The poll has a margin of error of plus or minus 5 per cent.