name · noun · 8 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:/kɹʌks/
US:Recorded audio is listed in the source snapshot.
Australia:Recorded audio is listed in the source snapshot.
homophone: crux
Northern-England:/kɹʊks/
Scotland, Wales:/kɾʌks/
US:/kɹʌks/
US:/krəks/
Australian:/kɹɐks/
rhymes with -ʌks
homophone: crooks (without the foot-strut split)
CMU ARPABET:K R AH1 K S
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
name
Meaning 1
A distinctive winter constellation of the southern sky, shaped like a cross. It appears in the flags of several countries in Oceania.
Definition source: English Wiktionary via Wiktextract
Topics: astronomy, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: Southern Cross
Antonyms: none provided
2
noun
Meaning 2
The basic, central, or essential point or feature.
Definition source: English Wiktionary via Wiktextract
Examples
The crux of her argument was that the roadways needed repair before anything else could be accomplished.
Meaning relationships
Synonyms: core, essence, heart, gist, bowels, sum, brass tacks, crux, drift, guts, gravamen, heart and soul, heartstring, heartstrings, inwardness, kernel, marrow, meat, moral of the story, nitty-gritty, nub, nuts and bolts, pith, punctum saliens, quintessence, soul, spirit, stuff, substance, tenor
Antonyms: none provided
3
noun
Meaning 3
The critical or transitional moment or issue, a turning point.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
noun
Meaning 4
A puzzle or difficulty.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: enigma, puzzle, riddle, conundrum
Antonyms: none provided
5
noun
Meaning 5
The hardest point of a climb.
Definition source: English Wiktionary via Wiktextract
Topics: climbing, hobbies, lifestyle, sports
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
noun
Meaning 6
A cross on a coat of arms.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
7
noun
Meaning 7
the most important point
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: crux of the matter
Antonyms: none provided
Broader terms: point
Narrower terms: alpha and omega
8
noun
Meaning 8
a small conspicuous constellation in the southern hemisphere in the Milky Way near Centaurus
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: Southern Cross, Crux Australis
Antonyms: none provided
Broader terms: constellation
History
Etymology
Learned borrowing from Latin crux (“a cross”).
Borrowed from Latin crux (“cross, wooden frame for execution”), possibly from the Proto-Indo-European *(s)ker- (“to turn, to bend”). Doublet of cross and crouch (“cross”).
Across languages
Translations
45 source translations are retained for this English entry.
Arabic:
مَرْبِط الْفَرَس
(marbiṭ al-faras)
— central or essential point
Armenian:
առանցքային կետ
(aṙancʻkʻayin ket)
— central or essential point
Armenian:
առանցք
(aṙancʻkʻ)
— central or essential point
Bulgarian:
същност на проблема
(sǎštnost na problema)
— central or essential point
Catalan:
moll de l'os
— central or essential point
Catalan:
quid
— central or essential point
Chinese Mandarin:
關鍵 /关键
(guānjiàn)
— central or essential point
Czech:
podstata
— central or essential point
Czech:
jádro
— central or essential point
Finnish:
ydin
— central or essential point
German:
Kern (-punkt)
— central or essential point
Hebrew:
עיקר
(ikar)
— central or essential point
Italian:
punto cruciale
— central or essential point
Malayalam:
കാര്യം
(kāryaṁ)
— central or essential point
Māori:
tino
— central or essential point
Polish:
sedno
— central or essential point
Portuguese:
ponto crucial
— central or essential point
Romanian:
punct crucial
— central or essential point
Russian:
основная проблема
(osnovnaja problema)
— central or essential point
Russian:
решающий вопрос
(rešajuščij vopros)
— central or essential point
Russian:
суть
(sutʹ)
— central or essential point
Spanish:
punto crucial
— central or essential point
Spanish:
asunto esencial
— central or essential point
Spanish:
quid
— central or essential point
Spanish:
meollo
— central or essential point
Swedish:
kärna
— central or essential point
Swedish:
pudelns kärna
— central or essential point
Welsh:
craidd
— central or essential point
Armenian:
շրջադարձային կետ
(šrǰadarjayin ket)
— critical or transitional moment
Bulgarian:
критичен момент
(kritičen moment)
— critical or transitional moment
Dutch:
kruispunt
— critical or transitional moment
Finnish:
käännekohta
— critical or transitional moment
Finnish:
taitekohta
— critical or transitional moment
German:
Wendepunkt
— critical or transitional moment
Portuguese:
momento decisivo
— critical or transitional moment
Romanian:
moment decisiv
— critical or transitional moment
Bulgarian:
затруднение
(zatrudnenie)
— puzzle or difficulty