/up"suyd'/ , n.
1. the upper side or part.
2. that part of a chart or graph that shows a higher level, esp. in price.
3. an upward trend, as in stock prices.
4. a positive result.
5. an encouraging or positive aspect.
6. get upsides with , Brit. to get even with.
adj.
7. going higher, esp. in price or worth: This stock has a nice upside potential.
prep.
8. on or against the side of: Give him a smack upside the head.
[ 1605-15; UP- + SIDE 1 ]