It's a good question. One thing you find in modern physics is that ideas are often named according to some mathematical analogue to classical physics. You star

It's a good question. One thing you find in modern physics is that ideas are often named according to some mathematical analogue to classical physics. You start thinking about forces by imagining a ball being kicked, and after boiling away the conceptual baggage you realise it's all about the exchange of energy. It turns out that energy exchange is one of the most fundamental mechanisms that drives nature so it makes sense that this same mathematics appears in deeper theories. Unlike classical physics the symbols in quantum equations don't represent simple numbers, they're usually quite complicated and subtle actually but remarkably these equations share many properties with their classical counterparts. To be fair this could just be that phenomena that differ completely from classical physics are incomprehensible to us. So an electron "spin", at least mathematically, is governed by equations that are remarkable similar to classical equations of angular momentum and so on. Force is in the same category and really just means "fundamental interaction".