You can already encounter those terminologies as you go thru the journey in trading.
As long as you have the desire to know what each term means once you encounter them, you will already gain knowledge from it.
There's nothing wrong in not knowing all those terms, because a lot of us actually don't know those terms when we started trading.
Just keep an open mind about what you can learn as you go thru this path. We can learn everyday and yet we still feel that our knowledge is still not enough.
Depends on the trader. If he is also doing a research and willing to learn, or learn more while doing trades then yeah but not if he just trade and trade by basing only on his instincts and stock knowledge. Some terms might be obvious so I don't want to know them further but I will only get curious on those weird terminologies or those ones who are new to me.
I will surely study them as I know that it can help me with my trading journey. Being a starter is not an excuse to not know all of them. But it's fine if we don't rush things. What important is we add something new in our head even on some other times only as that helps us to grow more.