1) Trade in
बदले में लेना-देना (पुराने सामान से आंशिक अदायगी करना) - give something old as part payment
I traded in my old car for a new one.
2) Trade on
फायदा उठाना - take advantage of (something), especially in an unfair way.
I traded on his good nature to help me out of my financial difficulties.
3) Try on
पहन कर देखना - to put on (a garment) in order to test the fit
The tailor asked me to try on the coat.
4) Try out
जाँच के लिए चलाकर देखना - test something to see if effective
You should try out that car before you buy it.
5) Turn against
किसी के खिलाफ खड़े हो जाना - become (or cause someone to become) hostile towards.
A lot of his supporters turned against him.