Two;- nearly obsolete in common discourse, but used in poetry and burlesque. "Children twain." Chaucer. And whosoever shall compel thee to go a mile, go with him twain. Matt. v. 41. In twain, in halves; into two parts; asunder. When old winder split the rocks in twain. Dryden. -- Twain cloud. (Meteor.) Same as Cumulo-stratus.
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