true course
C1Technical (Navigation, Aviation, Marine); can appear in metaphorical use in formal/literary contexts.
Definition
Meaning
The actual path or direction over the Earth's surface that an aircraft or ship intends to follow, measured relative to true north (geographic north).
In navigation, the intended direction of travel expressed as an angular distance from true north (0-360°). It differs from 'magnetic course' (measured from magnetic north) and 'compass course' (as read on a compass). More generally, can be used metaphorically to describe a correct or intended path or direction in non-technical contexts.
Linguistics
Semantic Notes
A 'true course' is a planned, intended direction. It is not the same as the 'track' (the actual path made good over the ground, which can differ due to wind or current). It is a foundational concept in navigation from which other courses (magnetic, compass) are derived by applying corrections.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or definitional differences. Usage is identical in both technical communities (aviation, maritime). Spelling of related terms may differ (e.g., 'manoeuvre' vs. 'maneuver').
Connotations
Identical technical connotations. In metaphorical use, slightly more likely in British literary or formal speech.
Frequency
Extremely low frequency in everyday language. Exclusively high frequency within professional navigation, aviation, and sailing contexts in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
The [pilot/navigator] calculated a true course [of 270 degrees] [to the destination].The [ship/aircraft] is [steering/flying] a true course [from A to B].Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “To stay on one's true course (metaphorical): to remain focused on one's correct or intended path in life or a project.”
Usage
Context Usage
Business
Rare. Possible metaphorical use in strategy: 'The company has found its true course for growth.'
Academic
Used in geography, earth sciences, and navigation textbooks and research papers.
Everyday
Virtually never used in everyday conversation unless discussing sailing, flying, or navigation.
Technical
Standard, essential term in aviation, marine navigation, cartography, and geodesy. Used in flight planning, nautical charts, and navigation software.
Examples
By Part of Speech
adjective
British English
- The pilot entered the true-course data into the navigation computer.
- We need a true-course measurement, not a magnetic one.
American English
- The navigator plotted a true-course line on the chart.
- True-course calculations must account for variation.
Examples
By CEFR Level
- The captain calculated the true course from Southampton to New York.
- On the map, draw a line showing the true course for the journey.
- Before considering wind correction, the flight plan indicated a true course of 145 degrees.
- The yacht's navigation system automatically converts the true course you enter into a compass course for the helmsman.
- Metaphorically, after the scandal, the political party struggled to find its true course again.
Learning
Memory Aids
Mnemonic
Think 'TRUE north' for a 'TRUE course'. It's the course you would follow if you could draw a straight line on a globe from your starting point to your destination.
Conceptual Metaphor
LIFE IS A VOYAGE / A PLAN IS A PATH. 'Finding one's true course in life' maps the technical concept of navigation onto personal or professional direction.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating 'true' as 'правдивый' or 'верный' in this context. The correct conceptual translation relates to 'истинный' (истинный курс) or 'географический' (географический курс).
- Do not confuse with 'курс' meaning an exchange rate or a university course.
Common Mistakes
- Confusing 'true course' with 'true heading' (the direction the aircraft's nose is pointing relative to true north).
- Using 'true course' in everyday contexts where simply 'direction' or 'path' is meant, sounding overly technical or pretentious.
- Misspelling as 'true coarse'.
Practice
Quiz
What is the primary reference point for measuring a 'true course'?
FAQ
Frequently Asked Questions
Not exactly. Your car GPS typically shows your 'track' or 'course over ground'—the direction you're actually moving. A 'true course' is the specific planned direction relative to true north on a map, used more in formal aviation and marine navigation.
Precision. 'True course' specifies the reference point (true north) and is the first step in a chain of calculations that account for the difference between true north and magnetic north (variation) and a vehicle's own magnetic interference (deviation) to find the final 'compass course' to steer by.
It is very rare and would be a deliberate metaphor. In business writing, you might see 'the company's true course' to mean its fundamental strategic direction, but simpler terms like 'path', 'direction', or 'strategy' are far more common and natural.
'True course' is the intended path over the ground. 'True heading' is the direction the aircraft's nose or ship's bow is actually pointing at any given moment relative to true north. Wind or current can push you off course, so your heading may need to be different from your course to stay on the intended track.