upside

/ˈʌpˌsaɪd/

Etymology

From up + side.

upside means the highest or uppermost side or portion of something. Lexicurio rates it Rare gem — a strength score of 72 out of 100.

upside is pronounced /ˈʌpˌsaɪd/.

noun

The highest or uppermost side or portion of something.
A favourable aspect of something that also has an unfavourable aspect.“The only upside of being over 35 is that you don't get raped as much.”
An upward tendency, especially in a financial market etc.

On the top of.“Ruth Ann clenched her hand around the hairbrush and felt like smacking Ashley upside the head with it. She knew better than to talk that way.”