Here are some common word roots that include "spi" and their meanings:
* "spira": This root comes from the Latin word "spirare," meaning "to breathe."
* Inspire: To breathe into, to fill with an idea or feeling.
* Expire: To breathe out, to come to an end.
* Conspire: To breathe together, to plan secretly.
* "spect": This root comes from the Latin word "specere," meaning "to look at."
* Inspect: To look at closely and carefully.
* Prospect: A view, a possibility, or an outlook.
* Retrospect: A look back in time, a review of the past.
Therefore, the meaning of "spi" depends on the word it is part of.
If you provide the specific word you're interested in, I can help you understand its meaning.