The word "gladiate" can be defined as a combat or fight using swords or other weapons. Synonyms for this word include "duel," "fight," "battle," "wrestle," and "tussle." Other synonyms that connote a more formal or ritualistic type of combat might include "spar," "joust," or "fencer." However, "gladiate" can also be used in a more metaphorical sense, meaning to engage in a struggle or conflict. In this context, synonyms might include "contend," "confront," "oppose," "rival," or "compete." Ultimately, the best synonym for "gladiate" will depend on the context and intended meaning of the word.