taru-adjective, adverb taking the 'to' particle
Literary adjective describing something expansive and limitless, often used for oceans, skies, or abstract expanses. Functions as a taru-adjective (e.g., 洋々たる) or adverbially with と (e.g., 洋々と).
Before the vast expanse of the ocean, he was at a loss for words.
His future seemed to stretch out boundlessly before him.
promising future; rosy prospects
Standard kanji spelling; the iteration mark 々 is commonly used.
Alternate spelling without the iteration mark; less common but still encountered.
Composed of 洋 (ocean, vast) reduplicated for emphasis. The exact historical derivation is uncertain, but the spelling is conventionally associated with the meaning of vastness.