This is the 779th most frequent Hebrew word.
אהיה
"אהיה" means "I will be."
אהיה is used here in the future tense to indicate 'I will be'.
מחר אהיה בבית הספר.
Tomorrow, I will be at school.
אהיה is used here to express a conditional future state, 'I will be'.
אם תתקשר, אהיה זמין לדבר.
If you call, I will be available to talk.
אהיה indicates a personal and aspirational future presence, 'I will be'.