realm

Meanings

1. 1
   noun

   An area of activity, knowledge, or interest.

   This question lies in the realm of philosophy rather than science.

2. 2
   noun

   A kingdom or territory ruled by a king or queen.

   The knights swore to defend the realm.

From Middle English rewme, realme, reaume, from Old French reaume, realme, reialme (“kingdom”), of unclear origins. A postulated *rēgālimen (“domain, kingdom”), Late Latin or Vulgar Latin cross of regimen with rēgālis is usually cited. The modern spelling predominates from around 1600. The modern pronunciation with /l/ is either a spelling pronunciation or influenced by the etymology.

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