—prep.
1 Math. with the addition of (3 plus 4 equals 7).
Usage:
Symbol: +.
2 (of temperature) above zero (plus 2° C).
3 colloq. with; having gained; newly possessing (returned plus a new car).
—adj.
1 (after a number) at least (fifteen plus).
2 (after a grade etc.) rather better than (beta plus).
3 Math. positive.
4 having a positive electrical charge.
5 (attrib.) additional, extra (plus business).
—n.
1 = plus sign.
2 Math. an additional or positive quantity.
3 an advantage (experience is a definite plus).
—conj. colloq. disp. also; and furthermore (they arrived late, plus they were hungry).
Phrases and idioms:
plus sign the symbol +, indicating addition or a positive value.
Etymology: L, = more
Useful english dictionary. 2012.