triweekly
C1Formal, Technical (e.g., publishing, scheduling, business reporting)
Definition
Meaning
Occurring or appearing three times a week, or every three weeks.
Describing the frequency of an event, publication, or activity that happens three times per week (semiweekly) OR every three weeks (fortnightly plus). The term is ambiguous due to this dual meaning, requiring context for clarity.
Linguistics
Semantic Notes
This word is a classic example of a contranym or auto-antonym—a word with two contradictory meanings. 'Triweekly' can mean both 'three times a week' and 'every three weeks'. This ambiguity makes it problematic in precise communication. In publishing, it often leans towards 'every three weeks'. For clarity, 'three times a week' or 'every three weeks' is preferred.
Dialectal Variation
British vs American Usage
Differences
No major regional difference in the core ambiguity. Both varieties recognise the dual meaning. In formal scheduling contexts, ambiguity is generally avoided by using clearer alternatives.
Connotations
Connotes formal scheduling, periodicals, or bureaucratic timetables. Can connote confusion or lack of clarity if used without specification.
Frequency
Low frequency in both varieties due to its problematic ambiguity. More likely found in older texts, formal documents, or specific industry jargon (e.g., library science for periodicals).
Vocabulary
Collocations
Grammar
Valency Patterns
[Publication/Event] is triweekly.We meet on a triweekly basis.The [noun] is published triweekly.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “(No common idioms directly associated)”
Usage
Context Usage
Business
"The triweekly performance reports are due every third Monday." (Meaning must be clarified in the document.)
Academic
"The journal shifted from a monthly to a triweekly publication schedule to expedite article dissemination."
Everyday
Rarely used due to potential misunderstanding. "I have triweekly physio" would be ambiguous.
Technical
Used in library cataloguing to describe the frequency of periodicals (e.g., "triweekly newspaper").
Examples
By Part of Speech
verb
British English
- (Rare as a verb)
American English
- (Rare as a verb)
adverb
British English
- The magazine is published triweekly, on the first, eleventh, and twenty-first of the month.
- The bins are collected triweekly in that borough.
American English
- The team meets triweekly—every Monday, Wednesday, and Friday.
- The report is generated triweekly for the board.
adjective
British English
- The triweekly committee reviews are held on Mondays, Wednesdays, and Fridays.
- It was a triweekly local paper, published every third Thursday.
American English
- We established a triweekly conference call for the project team.
- The triweekly newsletter comes out every three weeks.
Examples
By CEFR Level
- (Not typical for this level due to complexity and low frequency)
- The cleaning service comes triweekly. (Requires context to know which meaning.)
- I read a triweekly magazine.
- To avoid confusion, the manager specified 'meetings three times a week' instead of using the term 'triweekly'.
- The library's triweekly bulletin lists all new acquisitions.
- The ambiguous nature of 'triweekly' renders it unsuitable for precise contractual language regarding delivery schedules.
- Historically, many 19th-century newspapers advertised themselves as triweekly publications.
Learning
Memory Aids
Mnemonic
Think of 'tri' (three) + 'weekly' (week). The trap is: does it mean three *in* a week, or one *per* three weeks? Picture a calendar: three marks in one week, OR one mark with a two-week gap after it.
Conceptual Metaphor
TIME IS A MEASURABLE CYCLE (The word attempts to quantify cycles within or of weeks).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Direct translation attempt 'трехнедельный' primarily means 'lasting three weeks' or 'every three weeks', missing the 'three times a week' meaning.
- Russian lacks a single common word for 'three times a week'. Using 'triweekly' as a direct equivalent will often cause confusion.
- The ambiguity of the English word does not map neatly onto any single Russian term.
Common Mistakes
- Using 'triweekly' without clarifying the intended meaning.
- Assuming everyone will interpret it as 'three times a week'.
- Confusing it with 'biweekly' (which has the same dual-meaning problem).
- Misspelling as 'tryweekly' or 'tri-weekly' (hyphenated form is also acceptable).
Practice
Quiz
What is the primary linguistic issue with the word 'triweekly'?
FAQ
Frequently Asked Questions
It can mean either, which is why it's a problematic word. Dictionaries list both definitions. Context usually clarifies, but it's often avoided in precise communication.
For 'three times a week', use 'three times a week' or 'thrice-weekly'. For 'every three weeks', use 'every three weeks' or 'every third week'.
No, it has low frequency in modern usage precisely because of its ambiguity. It is more common in historical texts or specific technical fields like periodicals cataloguing.
Yes, exactly. 'Biweekly' suffers from the same ambiguity, meaning either 'twice a week' or 'every two weeks'. The same advice applies: use clearer phrasing.