Oh—O

It is only the most careful writers who use these two interjections with proper discrimination. The distinction between them is said to be modern. Oh is simply an exclamation, and should always be followed by some mark of punctuation, usually by an exclamation point. "Oh! you are come at last." "Oh, help him, you sweet heavens!" "Oh, woe is me!" "Oh! I die, Horatio." O , in addition to being an exclamation, denotes a calling to or adjuration; thus, "Hear, O heavens, and give ear, O earth!" "O grave, where is thy victory?" "O heavenly powers, restore him!" "O shame! where is thy blush?" Older—Elder. "He is the older man of the two, and the oldest in the neighborhood." "He is the elder of the two sons, and the eldest of the family." "The elder son is heir to the estate; he is older than his brother by ten years."