fortalecéis
Fortalecéis is a verb form in the Spanish language. It is the second-person plural present indicative conjugation of the verb fortalecer. This means it is used when addressing a group of people ("you all") and describing an action that is currently happening or habitually occurs. The verb fortalecer itself means to strengthen, to fortify, to make stronger, or to reinforce.
Therefore, "fortalecéis" translates directly to "you all strengthen" or "you all are strengthening." For example, in