"I will feed him."
I love that you added this, but I just realized that the je' taught in the course is buy, rather than feed... I'm entirely OK with both being in there, but IIRC you're trying to avoid homonyms.
The alternate meaning may not have been specifically taught (yet) in this course, but many of us use outside websites and other sources for reference, such the boqwI' app and the hol.kag.org website. If it's an alternate meaning for the same word, with identical spelling, and the hints are there to give us the alternate meaning, I don't see the harm in learning that any given word has an additonal meaning. It may be useful in the future. :-)