Learn Italian: Toglierò l'ago tra un minuto. - I will take out the needle in a minute.

This sentence highlights the exact difference between these two temporal prepositions! You use tra (or fra) to express how much time will elapse before an action happens. If you said in un minuto, it would mean the physical process of pulling the needle out takes a whole minute to complete, which would be quite painful.

Could I use fra instead of tra in this sentence?

Yes, tra and fra are completely identical in meaning and grammatical function. Native speakers usually choose between them simply to avoid repeating sounds. For example, saying fra fratelli (between brothers) sounds clunky, so tra fratelli is preferred. Here, tra un minuto and fra un minuto are both perfectly natural.

The English translation says 'take out', but doesn't togliere usually mean 'to take off'?

Togliere is a very versatile verb. While you have likely seen it used for taking off clothing, its broader core meaning is 'to remove' or 'to take away'. This makes it the most standard verb to use for removing a medical needle, a bandage, or even taking a pot off the stove.

If I wanted to replace l'ago and just say 'I will take it out in a minute', how would the sentence change?