Jillianne is a feminine given name of modern Anglo-American origin, formed by combining Jillian—a rendition of the Latin Julianus, meaning “youthful”—with Anne, the Hebrew-derived element for “grace.” Pronounced /dʒɪˈliːən/ in both American and British English, the name reflects a precise, compound structure in keeping with other –ian/–anne appellations. U.S. Social Security data from 1978 through 2016 show Jillianne maintaining a modest profile, ranking between 751 and 980; it recorded its peak incidence of 23 births in both 1986 and 2000 before tapering to five occurrences by 2016. This steady yet restrained usage indicates a deliberate choice for parents seeking classical resonance without mainstream prevalence. Its rarity ensures that few classrooms will contain more than one Jillianne, underscoring the name’s balance of historical depth and contemporary individuality.
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