遂に

遂に is a strong, forward-looking adverb used to mark a culmination or turning point after a long time, effort, or anticipation. It signals that something hoped-for or awaited has finally happened, often with a sense of relief, surprise, or inevitability. It is more emphatic than とうとう and is used in situations where the outcome was uncertain or difficult to achieve. It can occur at the start of the sentence or right before the main verb in the sentence, depending on emphasis. Typical contexts include long efforts finally paying off, long-awaited discoveries, or results after a prolonged period.