A subordinate is someone who works for someone else. As a verb, to subordinate means to place or rank one thing below another. When you're doing a group project, sometimes you have to subordinate your ideas to the desires of the larger group.
The prefix sub- means "lower" and ordinate refers to an ordering of things. In the army, a private is subordinate to an officer. You can also say the private is a subordinate. When it's an adjective or noun, the word is pronounced "suh-BOR-duh-nit." When it's a verb, it’s pronounced "suh-BOR-duh-nate." Don’t subordinate one pronunciation to the other: they're both equally important.