Here are some examples of how they are used:
* Raise: "She raised her hand to ask a question."
* Rays: "The sun's rays warmed our faces."
However, depending on the context, "raise" can also be a homonym for "raze", which means to destroy completely.
For example:
* Raise: "We need to raise funds for the new library."
* Raze: "The old building was razed to make way for a new one."
It's important to consider the context of the sentence to determine which homonym is appropriate.