If something’s masculine, it’s related to men. When you hear a masculine voice outside greeting your neighbor, you know it’s your dad and not your mom.
Masculine can describe people or things that have qualities often associated with men. If someone has a masculine appearance, the person is probably tall and strong. If your new jacket has masculine tailoring, that means it’s cut like a man’s jacket. Masculine can also refer to words. In many languages, words — especially nouns — are given a gender. If you’ve studied French or Spanish, you know you need to figure out which article to use with a masculine noun.