adj · noun · 7 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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nē'ŏn
/ˈni.ɒn/
US:/ˈniˌɑn/
US:Recorded audio is listed in the source snapshot.
rhymes with -iɒn
CMU ARPABET:N IY1 AA0 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
That resembles a neon light; extremely bright; fluorescent
Definition source: English Wiktionary via Wiktextract
Usage: not-comparable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
The chemical element (symbol Ne) with an atomic number of 10. The second of the noble gases, it is a colourless, odorless inert gas.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
A form or sample of the element.
Definition source: English Wiktionary via Wiktextract
Usage: countable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
Neon signs or lights, collectively.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
noun
Meaning 5
A neon tetra fish.
Definition source: English Wiktionary via Wiktextract
Usage: countable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
noun
Meaning 6
Describes bright and vibrant colors having a fluorescent look.
Definition source: English Wiktionary via Wiktextract
Usage: attributive, countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: fluorescent
Antonyms: none provided
7
noun
Meaning 7
a colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: Ne, atomic number 10
Antonyms: none provided
Broader terms: chemical element, element, noble gas, inert gas, argonon
History
Etymology
Learned borrowing from Ancient Greek νέον (néon), neuter of νέος (néos, “new”), from earlier *νέϝος (*néwos), from Proto-Hellenic *newos, from Proto-Indo-European *néwos. By surface analysis, neo- + -on (suffix used in all noble gases).
Across languages
Translations
111 source translations are retained for this English entry.