What is occurring or appearing once in a fortnight; as, a fortnightly meeting of a club; a fortnightly magazine, or other publication. -- adv. Once in a fortnight; at intervals of a fortnight called?

fortnightly — Occurring or appearing once in a fortnight; as, a fortnightly meeting of a club; a fortnightly magazine, or other publication. -- adv. Once in a fortnight; at intervals of a fortnight. (Webster's 1913.)

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