Standard Lemma 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.
Sound
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noun
A solid with five summits (vertices), such as a square pyramid
Definition source: English Wiktionary via Wiktextract
Usage: archaic
Topics: geometry, mathematics, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
History
From Ancient Greek πέντε (pénte, “five”) + ἄκρον (ákron, “summit”).
