Standard Lemma guide

moonstone

noun · 2 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

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • General-American: /ˈmunˌstoʊn/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: M UW1 N S T OW2 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A translucent gemstone, an orthoclase feldspar, that has a pearly lustre.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: chemistry, geography, geology, mineralogy, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a transparent or translucent gemstone with a pearly luster; some specimens are orthoclase feldspar and others are plagioclase feldspar

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: feldspar, felspar, transparent gem

History

Etymology

From moon + stone.

Across languages

Translations

23 source translations are retained for this English entry.

  • Arabic: حَجَرُ ٱلْقَمْر (ḥajaru l-qamr) — translucent gemstone
  • Catalan: pedra de lluna — translucent gemstone
  • Chinese Mandarin: 月長石 /月长石 (yuèzhǎngshí) — translucent gemstone
  • Czech: měsíček — translucent gemstone
  • Dutch: maansteen — translucent gemstone
  • Finnish: kuukivi — translucent gemstone
  • French: pierre de lune — translucent gemstone
  • German: Mondstein — translucent gemstone
  • Ancient Greek: σεληνίτης (selēnítēs) — translucent gemstone
  • Hindi: मुक्ता (muktā) — translucent gemstone
  • Hungarian: holdkő — translucent gemstone
  • Italian: pietra di luna — translucent gemstone
  • Italian: lunaria — translucent gemstone
  • Japanese: 月長石 (getchōseki) — translucent gemstone
  • Kazakh: айтас (aitas) — translucent gemstone
  • Korean: 월장석 (woljangseok) — translucent gemstone
  • Polish: kamień księżycowy — translucent gemstone
  • Portuguese: pedra da Lua — translucent gemstone
  • Russian: лу́нный ка́мень (lúnnyj kámenʹ) — translucent gemstone
  • Spanish: piedra de luna — translucent gemstone
  • Swedish: månsten — translucent gemstone
  • Thai: มุกดา (múk-daa) — translucent gemstone
  • Welsh: lloerfaen — translucent gemstone