What does this icon mean?

[Dom1577]

 It's in the upper left hand corner.

[Forzabox7154_SM]

pin

[AndrewL]

@Dom1577: For clarity, is the symbol showing in your Status Bar? Can you remember what you were doing before the symbol appeared e.g. which app you were using? 

[JAMES4578]

Hi @Dom1577  possibly you have pinned an note  to the screen like in this example  (though this one is a Note series)   https://www.samsung.com/au/support/mobile-devices/pin-off-screen-memo-to-aod/    Have you tried a long press to remove it?