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
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.
Received-Pronunciation:/ˈkɔː.nə.stəʊn/
Southern-England:Recorded audio is listed in the source snapshot.
General-American:/ˈkɔɹ.nɚ.stoʊn/
CMU ARPABET:K AO1 R N ER0 S T OW2 N
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
noun
Meaning 1
A stone forming the base at the corner of a building.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
Such a stone used ceremonially, often inscribed with the architect's and owner's names, dates and other details.
Definition source: English Wiktionary via Wiktextract
Examples
The cornerstone on the Flatiron Building is set on the Fifth Avenue facade.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
noun
Meaning 3
That which is prominent, fundamental, noteworthy, or central.
Definition source: English Wiktionary via Wiktextract
Usage: figuratively
Examples
Exceptional service is the cornerstone of the hospitality industry.
That is the cornerstone of any meaningful debate about budgets and projects, regulations and policies.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
a stone at the outer corner of two intersecting masonry walls
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: stone
5
noun
Meaning 5
a stone in the exterior of a large and important building; usually carved with a date and laid with appropriate ceremonies
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: stone
6
noun
Meaning 6
the fundamental assumptions from which something is begun or developed or calculated or explained
Definition source: Princeton WordNet 3.0
Examples
the whole argument rested on a basis of conjecture
From Middle English corner ston; equivalent to corner + stone. The figurative sense is in part after Psalm 118:22, and is also quoted several times in the New Testament.
Across languages
Translations
94 source translations are retained for this English entry.
Bulgarian:
крайъгълен камък
(krajǎgǎlen kamǎk)
— base stone
Catalan:
pedra cantonera
— base stone
Czech:
nárožní kámen
— base stone
Dutch:
hoeksteen
— base stone
Dutch:
steunpilaar
— base stone
Esperanto:
angulŝtono
— base stone
Finnish:
kulmakivi
— base stone
French:
pierre angulaire
— base stone
French:
pierre d'angle
— base stone
Georgian:
ქვაკუთხედი
(kvaḳutxedi)
— base stone
German:
Eckstein
— base stone
Greek:
ακρογωνιαίος λίθος
(akrogoniaíos líthos)
— base stone
Hungarian:
sarokkő
— base stone
Italian:
pietra angolare
— base stone
Italian:
pietra d'angolo
— base stone
Japanese:
礎
(ishizue)
— base stone
Middle English:
corner ston
— base stone
Khiamniungan Naga:
thāyôlòng
— base stone
Persian:
پی
(pey)
— base stone
Persian:
بنیاد
(bonyâd)
— base stone
Persian:
سنگ پی
(sang-e pey)
— base stone
Plautdietsch:
Akjsteen
— base stone
Polish:
kamień węgielny
— base stone
Russian:
краеуго́льный ка́мень
(krajeugólʹnyj kámenʹ)
— base stone
Spanish:
piedra angular
— base stone
Tagalog:
panulukang-bato
— base stone
Turkish:
köşe taşı
— base stone
Ottoman Turkish:
كوشه طاشی
(köşe taşı)
— base stone
Ukrainian:
нарі́жний ка́мінь
(narížnyj káminʹ)
— base stone
Welsh:
conglfaen
— base stone
Arabic:
حجر أساس
— ceremonial stone
Armenian:
անկյունաքար
(ankyunakʻar)
— ceremonial stone
Bulgarian:
крайъгълен камък
(krajǎgǎlen kamǎk)
— ceremonial stone
Chinese Mandarin:
奠基石
— ceremonial stone
Chinese Mandarin:
基石
(jīshí)
— ceremonial stone
Czech:
základní kámen
— ceremonial stone
Danish:
grundsten
— ceremonial stone
Dutch:
hoeksteen
— ceremonial stone
Estonian:
nurgakivi
— ceremonial stone
Finnish:
peruskivi
— ceremonial stone
French:
pierre angulaire
— ceremonial stone
French:
première pierre
— ceremonial stone
West-Frisian:
earste stien
— ceremonial stone
Georgian:
ქვაკუთხედი
(kvaḳutxedi)
— ceremonial stone
Georgian:
საძირკვლის ქვა
(saʒirḳvlis kva)
— ceremonial stone
German:
Grundstein
— ceremonial stone
Hebrew:
אבן פינה
— ceremonial stone
Icelandic:
hornsteinn
— ceremonial stone
Italian:
pietra angolare
— ceremonial stone
Japanese:
礎石
(soseki)
— ceremonial stone
Kannada:
ಅಡಿಗಲ್ಲು
(aḍigallu)
— ceremonial stone
Lithuanian:
kertinis akmuo
— ceremonial stone
Luxembourgish:
Grondsteen
— ceremonial stone
Norwegian Bokmål:
hjørnestein
— ceremonial stone
Norwegian Nynorsk:
hjørnestein
— ceremonial stone
Occitan:
pèira angulara
— ceremonial stone
Plautdietsch:
Akjsteen
— ceremonial stone
Polish:
kamień węgielny
— ceremonial stone
Portuguese:
primeira pedra
— ceremonial stone
Portuguese:
pedra angular
— ceremonial stone
Romanian:
piatră de temelie
— ceremonial stone
Russian:
краеуго́льный ка́мень
(krajeugólʹnyj kámenʹ)
— ceremonial stone
Spanish:
piedra angular
— ceremonial stone
Spanish:
primera piedra
— ceremonial stone
Tagalog:
batong-panulukan
— ceremonial stone
Ottoman Turkish:
كوشه طاشی
(köşe taşı)
— ceremonial stone
Ukrainian:
нарі́жний ка́мінь
(narížnyj káminʹ)
— ceremonial stone
Vietnamese:
viên đá đầu tiên
— ceremonial stone
Welsh:
conglfaen
— ceremonial stone
Bulgarian:
крайъгълен камък
(krajǎgǎlen kamǎk)
— that which is prominent, fundamental, noteworthy, or central
Catalan:
pedra angular
— that which is prominent, fundamental, noteworthy, or central
Chinese Mandarin:
基礎 /基础
(jīchǔ)
— that which is prominent, fundamental, noteworthy, or central
Czech:
základ
— that which is prominent, fundamental, noteworthy, or central
Esperanto:
angulŝtono
— that which is prominent, fundamental, noteworthy, or central
Finnish:
kulmakivi
— that which is prominent, fundamental, noteworthy, or central
French:
pierre angulaire
— that which is prominent, fundamental, noteworthy, or central
French:
pierre d'angle
— that which is prominent, fundamental, noteworthy, or central
Georgian:
ქვაკუთხედი
(kvaḳutxedi)
— that which is prominent, fundamental, noteworthy, or central
German:
Eckpfeiler
— that which is prominent, fundamental, noteworthy, or central
German:
Eckstein
— that which is prominent, fundamental, noteworthy, or central
Greek:
ακρογωνιαίος λίθος
(akrogoniaíos líthos)
— that which is prominent, fundamental, noteworthy, or central
Hungarian:
sarokkő
— that which is prominent, fundamental, noteworthy, or central
Italian:
fondamenta
— that which is prominent, fundamental, noteworthy, or central
Norwegian Bokmål:
hjørnestein
— that which is prominent, fundamental, noteworthy, or central
Norwegian Nynorsk:
hjørnestein
— that which is prominent, fundamental, noteworthy, or central
Persian:
سنگبنا
(sang-banâ)
— that which is prominent, fundamental, noteworthy, or central
Polish:
kamień węgielny
— that which is prominent, fundamental, noteworthy, or central
Portuguese:
fundamento
— that which is prominent, fundamental, noteworthy, or central
Portuguese:
princípio
— that which is prominent, fundamental, noteworthy, or central
Portuguese:
base
— that which is prominent, fundamental, noteworthy, or central
Russian:
краеуго́льный ка́мень
(krajeugólʹnyj kámenʹ)
— that which is prominent, fundamental, noteworthy, or central
Spanish:
fundamento
— that which is prominent, fundamental, noteworthy, or central
Tagalog:
panulukang-bato
— that which is prominent, fundamental, noteworthy, or central
Ukrainian:
нарі́жний ка́мінь
(narížnyj káminʹ)
— that which is prominent, fundamental, noteworthy, or central