In older English, and even today in French, and European English, 'blond' always refers to a male, and 'blonde' always refers to a female. Similarly, a brunet, is a man, and a brunette, is a woman. However things have changed in our American/Canadian English writings. You may have noticed that in books now days, 'blond' is often the only word used while the word 'blonde' is rarely seen. Since our culture is trying to get away from the fact that there is only male and female, they've begun to drop the distinct difference between the two words.
So, to be politically 'correct' you would use 'blond' at all times unless it's a noun referring to a woman, then you use 'blonde'. To be grammatically correct, you use 'blond' for a man/boy and 'blonde' for a woman/girl.
And since this is a 'blonde/blond' post, I figured we better end it with some 'blonde' jokes.:)
A blonde was pulled over for speeding, and the officer asked to see her license. She replied with a huff. . . "When are you guys going to get your act together? Yesterday one of you guys took my license away, and now you want me to show it to you!"
If a blonde and a brunette both fell of a building, who would hit the ground first? The brunette. The blonde would have to stop for directions.
How do you make a blonde laugh on Saturday? Tell her a joke on Wednesday.
A brunette goes to her doctor and says that her body hurts wherever she touches it. "Impossible," he says. "Show me." She presses her finger on her elbow and screams in agony, then pushes her knee and screams, then her ankle, and so on; everywhere she touches makes her scream with pain. The doctor asks her if she's really a brunette. She says, "No, I dyed my hair. I'm naturally blonde." "Thought so," he says. "Your finger's broken."
