Can this be the word listen as a stand alone word, like vocab, or means you listen and can be used in any sense?

can this be the word listen as a stand alone word, like vocab, or means you listen and can be used in any sense?

It is a form of the word слу́шать (the infinitive). It this lesson it conjugates to ‘слушаете’ because it is saying “you listen” and it is using formal addresses (“на вы”). Вы слушаете подкаст = you are listening to the podcast. You can see all the conjugations here: слушать - Wiktionary.

However, don’t hung up on these conjugations at all at this point. Just try for comprehnsion and for the meaning “to listen” whenever you see the various forms.