In Spanish, the word for sun flower is girasol, which roughly translates to sun turner.

In Spanish, the word for sun flower is girasol, which roughly translates to sun turner.

The word in Spanish is almost identical to our Portuguese. For us, the word for sunflower is pronounced "girassol".
When I first saw "girassol", I read it as one would pronounce it in Spanish but with a longer 'S' sound. Then I heard the audio of the Portuguese version, and it's very different.
I just listened to the pronunciation in Brazilian Portuguese, and it's striking how different it sounds from Spanish.
Yes, it's a very common mistake for many people to think that Portuguese and Spanish are always very similar languages. 😅
Girasol in Spanish is a difficult word to translate. It roughly means "that which turns or swivels towards the sun". Throughout the day, a sunflower turns and tracks the sun to get optimal light. Therefore, the flower is a "sun turner".