Phrase guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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phrase
The principle of international law where states believe or accept that a practice exists and must be followed because of a rule of law requiring it, to the extent that it becomes part of the body of norms known as international Customary Law.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
Latin, opinio iuris sive necessitatis, "opinion of law or necessity"
