compass card: meaning, definition, pronunciation and examples
LowTechnical, Nautical, Historical
Quick answer
What does “compass card” mean?
The circular card mounted within a magnetic compass, marked with directional points (e.
Audio
Pronunciation
Definition
Meaning and Definition
The circular card mounted within a magnetic compass, marked with directional points (e.g., N, S, E, W) and degrees (0–360), which rotates relative to the compass needle to indicate heading.
In broader navigation contexts, it can refer to any similar circular dial or display showing direction, even in modern electronic systems. Figuratively, it can symbolize a guide or reference point for decision-making.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning. Spelling conventions follow the standard British/American pattern ('compass' is the same).
Connotations
Strongly associated with traditional maritime navigation in both dialects.
Frequency
Equally low-frequency in both dialects; used only within specific technical fields.
Grammar
How to Use “compass card” in a Sentence
The [noun] compass card [verb]the compass card of [noun]to [verb] the compass cardVocabulary
Collocations
Examples
Examples of “compass card” in a Sentence
adjective
British English
- The compass-card reading was steady.
- A compass-card alignment error.
American English
- The compass card reading was steady.
- A compass card alignment error.
Usage
Meaning in Context
Business
Rarely used. Might appear metaphorically in strategic planning: 'Our mission statement acts as our compass card.'
Academic
Used in history of science, navigation studies, and certain engineering disciplines.
Everyday
Virtually unused in general conversation.
Technical
Standard term in marine navigation, aviation, orienteering, and cartography.
Vocabulary
Synonyms of “compass card”
Watch out
Common Mistakes When Using “compass card”
- Misspelling as 'compas card'.
- Confusing 'compass card' with 'compass rose' (the latter is the design on a map).
FAQ
Frequently Asked Questions
Not exactly. A compass card is the physical, rotating dial inside a magnetic compass. A compass rose is the stationary diagram showing directions on a map or chart.
Yes. Modern electronic compasses and navigation systems often feature a digital representation of a compass card on their displays.
The lubber line is a fixed mark on the compass housing. You steer the vessel so that the desired bearing on the rotating compass card aligns with this line.
The term originates from the historical use of a card (a piece of paper or vellum) on which the points were painted, mounted on the magnet needle.
The circular card mounted within a magnetic compass, marked with directional points (e.
Compass card is usually technical, nautical, historical in register.
Compass card: in British English it is pronounced /ˈkʌmpəs kɑːd/, and in American English it is pronounced /ˈkʌmpəs kɑːrd/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine a birthday CARD with a COMPASS drawn on it, spinning to show you the way to the party.
Conceptual Metaphor
GUIDANCE IS NAVIGATION; MORAL PRINCIPLE IS A COMPASS. A 'compass card' can metaphorically represent a fixed set of guiding principles.
Practice
Quiz
What is the primary function of a compass card?