Here are some examples of words containing the root "-ject":
* Inject: To throw or force something into (like a liquid into a vein).
* Project: To throw forward or outward (like a beam of light).
* Eject: To throw out or expel (like a passenger from a plane).
* Reject: To throw back or refuse (like a proposal).
* Subject: To throw under the power or control of (like a nation to a ruler).
* Deject: To throw down or discourage (like someone's spirits).
The meaning of "-ject" can be slightly nuanced depending on the context of the word, but the core idea of "throwing" or "sending" usually remains.