What does dicta mean?
Dicta is the plural of dictum, a Latin-derived word meaning an authoritative statement, pronouncement, or saying. In everyday and academic use, dicta refers to the declared opinions or maxims of someone regarded as an authority — the pronouncements of judges, critics, or philosophers. The word carries particular weight in law, where it distinguishes between a court's binding reasoning (the ratio decidendi) and incidental remarks known as obiter dicta, which may persuade but do not bind future decisions. Because it comes from the Latin dicere, 'to say,' dicta belongs to the same family as dictate, verdict, and contradict. The word has a formal, somewhat learned tone; it appears mostly in legal, scholarly, and literary writing rather than casual conversation. Knowing dicta allows readers to follow legal commentary with precision and lends any argument about authority and opinion a sharper vocabulary.
noun (plural)The plural of 'dictum': formal statements, pronouncements, or authoritative opinions, especially those made by a judge or other figure of authority.
- Plural of dictum: formal or authoritative statements, pronouncements, or opinions, especially by a judge or respected authority.
- (Law) Remarks in a judicial opinion that are not essential to the decision and therefore not legally binding precedent (as in 'obiter dicta').
"The judge's dicta on free speech were cited for decades afterward."
"The professor peppered her lectures with the dicta of long-dead philosophers."
"Only the ratio decidendi binds later courts; the surrounding dicta carry persuasive weight at most."
'Dicta' is itself the plural form; the singular is 'dictum'. Some informal writers mistakenly treat 'dicta' as singular, but standard usage keeps it plural.
"The ruling's central holding was narrow, but its dicta ranged widely across constitutional questions."
In law, only the 'ratio' of a judgment binds future courts — the judge's passing remarks, the obiter dicta, are technically optional reading that lawyers still quote for centuries.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of dicta
Dicta is the plural of dictum, adopted directly from Latin dictum meaning 'a saying' or 'something said', the neuter past participle of dicere, 'to say or speak.' English borrowed the word in the late sixteenth or early seventeenth century, chiefly in rhetorical and later legal contexts. It shares its root with a wide family of English words, including dictate, dictionary, contradict, verdict, and indicate, all tracing back to the same Latin verb of speaking.
Related word forms
How dicta is actually used
Formal register, most common in legal writing and academic prose. In legal usage, 'obiter dicta' specifically denotes remarks in a judgment that do not form part of the binding reasoning. The singular is 'dictum'.
Easily confused with dicta
'Data' is the plural of 'datum' and refers to information, whereas 'dicta' is the plural of 'dictum' and refers to authoritative statements or sayings.