Noun
1. a young woman;
"a young lady of 18"2. a youthful female person;
"the baby was a girl""the girls were just learning to ride a tricycle"3. a female human offspring;
"her daughter cared for her in her old age"4. a girl or young woman with whom a man is romantically involved;
"his girlfriend kicked him out"5. a friendly informal reference to a grown woman;
"Mrs. Smith was just one of the girls"