adj · noun · 6 senses · updated from the 2026-07-25 local source snapshot
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.
Sound
Pronunciation
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UK:/ˈbaɪkɔːn/
US:/ˈbaɪkɔɹn/
rhymes with -aɪkɔː(ɹ)n
1
adj
Meaning 1
Having two horns or similar projections.
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: bicorned, bicornous
Antonyms: none provided
2
noun
Meaning 2
A two-cornered hat, worn by European and American military and naval officers from the 1790s.
Definition source: English Wiktionary via Wiktextract
Usage: historical
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A plane curve having two cusps.
Definition source: English Wiktionary via Wiktextract
Topics: mathematics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
A beast having two horns, either real or fictional.
Definition source: English Wiktionary via Wiktextract
Usage: rare
No example sentence was provided for this meaning.
a cocked hat with the brim turned up to form two points
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: bicorne
Antonyms: none provided
Broader terms: cocked hat
History
Etymology
Borrowed from Latin bicornis (“two-horned; two-pronged”). Compare French bicorne (“two-cornered hat; two-horned monster”) and Middle English bicorne (“two-horned anvil; two-pronged fork; fabulous (two-horned) beast”). Doublet of bicorne.
Across languages
Translations
12 source translations are retained for this English entry.
Arabic:
قُبَّعَة ذَات قَرْنَيْن
— two-cornered hat
Czech:
dvourohý klobouk
— two-cornered hat
Czech:
dvourohák
— two-cornered hat
French:
bicorne
— two-cornered hat
German:
Zweispitz
— two-cornered hat
Polish:
bikorn
— two-cornered hat
Polish:
pieróg
— two-cornered hat
Romanian:
bicorn
— two-cornered hat
Russian:
двууго́лка
(dvuugólka)
— two-cornered hat