difenderai
Difenderai is the Italian verb difendere in the second-person singular form of the futuro semplice, meaning "you will defend." It is used when addressing someone informal as "tu" to indicate a future action in which that person will defend something, such as an argument, a position, or a person.
Morphology and conjugation are regular for the -ere verb class. The future tense is formed by adding
Usage notes include that difendere can apply to physical protection, defending a stance in debate, or safeguarding
Etymology traces difendere to Latin defendere, with Italian phonetic evolution and assimilation of the prefix de-