* Girl refers to a female child or young woman.
* Girlhood refers to the period of time when a person is a girl, often encompassing the years from childhood to young adulthood.
For example:
* "Her girlish laughter filled the room." (The adjective "girlish" describes the laughter)
* "She longed for the carefree days of her girlhood." (The noun "girlhood" refers to the period of time)