minus-n; 3 Senses

Sense Number 1: subtraction operator in mathematics

Commentary: MINUS[+entity][+symbolic][+notation][+arithmetic][+operator][+subtraction]
NOTE: refers to the visible arithmetic sign "-", not the activity of subtraction (Sense 2)

Examples:
There is a minus in front of that six-figure number.
Sally got a minus on her A, because of grammatical mistakes.

Mappings:
WordNet 0.0 Sense Numbers: 1

Sense Number 2: the act of subtracting one number from another

Commentary: MINUS[+action][+subtraction][+arithmetic]
NOTE: refers to the act of subtracting, not the arithmetic symbol "-" (Sense 1)

Examples:
Instead of doing three minuses, add those numbers together and just subtract their total.
Your minus here is incorrect, the remainder is 65.44, not 64.23. (subtraction was wrong)

Mappings:
WordNet 3.0 Sense Numbers: 1

Sense Number 3: a negative quality, a drawback

Commentary: MINUS[+quality][+negative]

Examples:
His foul language is definitely a minus in the boardroom.
The small bedrooms and busy street are the minuses of this home.
Thee are some minuses to running your own business.

Mappings:
WordNet 0.0 Sense Numbers: 2