This is the 216th most frequent Arabic word.
واحدة
"One" or "a single (feminine)."
The word 'واحدة' means 'single' or 'one,' used here as an adjective emphasizing singularity.
هذه فكرة واحدة قد تساعد.
This is a single idea that might help.
The word 'واحدة' is used here as a numeral, indicating the quantity 'one' and agreeing in gender with the feminine noun 'تفاحة' (apple).
لدي تفاحة واحدة.
I have one apple.
The word 'واحدة' is used as a pronoun referring to a singular feminine entity ('image').