sirius: meaning, definition, pronunciation and examples
C2Literary, technical, formal
Quick answer
What does “sirius” mean?
The brightest star in the night sky, also known as the 'Dog Star', located in the constellation Canis Major.
Audio
Pronunciation
Definition
Meaning and Definition
The brightest star in the night sky, also known as the 'Dog Star', located in the constellation Canis Major.
By extension, a symbol or metaphor for exceptional brilliance, prominence, or intensity. Used in brand names (e.g., radio, software) and sometimes as a given name.
Dialectal Variation
British vs American Usage
Differences
No significant differences in usage; a specialized astronomical/literary term used identically in both varieties.
Connotations
Carries connotations of brilliance, fame, and heat (from its ancient association with the 'dog days' of summer).
Frequency
Very low frequency in general conversation; encountered primarily in astronomical, literary, or branding contexts.
Grammar
How to Use “sirius” in a Sentence
[Proper Noun] (stands alone)the star [Sirius][Sirius], the Dog StarVocabulary
Collocations
Examples
Examples of “sirius” in a Sentence
adjective
British English
- (Figurative, poetic) Her sirius intellect outshone all others.
American English
- (Figurative, poetic) He made a sirius contribution to the field.
Usage
Meaning in Context
Business
Rare, except in company or product names (e.g., SiriusXM, Sirius Computer Solutions) where it connotes leadership or brilliance.
Academic
Used in astronomy, astrophysics, and classical studies to refer to the specific star and its properties.
Everyday
Extremely rare in casual conversation; might be mentioned in contexts of stargazing or in reference to the radio service.
Technical
Used precisely in astronomy to denote the binary star system Sirius A and Sirius B.
Watch out
Common Mistakes When Using “sirius”
- Mispronouncing it as 'serious'.
- Using it as a common noun (e.g., 'a sirius' instead of 'the star Sirius').
FAQ
Frequently Asked Questions
No, it is a low-frequency proper noun primarily used in astronomical, literary, or branding contexts.
Not in standard usage. Rare, figurative adjectival use (e.g., 'sirius brilliance') is poetic and non-standard.
Confusing its pronunciation and spelling with the common English adjective 'serious'.
Because it is the brightest star in the constellation Canis Major, which Latin for 'Greater Dog'.
The brightest star in the night sky, also known as the 'Dog Star', located in the constellation Canis Major.
Sirius is usually literary, technical, formal in register.
Sirius: in British English it is pronounced /ˈsɪrɪəs/, and in American English it is pronounced /ˈsɪriəs/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “dog days (historically linked to the heliacal rising of Sirius)”
Learning
Memory Aids
Mnemonic
Think 'Serious light' – Sirius is seriously the brightest star.
Conceptual Metaphor
BRIGHTNESS IS PROMINENCE / HEAT IS INTENSITY (e.g., 'a performance of Sirius brilliance').
Practice
Quiz
What is Sirius most commonly known as?