IPA: /ˈprɒfɪtəbl/
KK: /ˈprɒfɪtəbl/
Something that brings in more money than it costs, making it a good investment or beneficial.
The new marketing strategy proved to be very profitable for the company.
Profitable → It is formed from "pro-" (meaning for) and "fit" (from Latin "facere", meaning to make or do) and "-able" (meaning capable of). The word "profitable" means capable of making a profit or being beneficial.
Think of something that is 'for' ('pro-') making or doing ('fit') well, which helps you remember that 'profitable' means it brings in benefits or profits.