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triennial - Master This Word

Master this word with our 5-step learning method – Learn English in English

triennial Word Meanings

  • occurring every three years
  • lasting for three years
  • related to a period of three years
Illustration for this word

triennial Example Sentences

Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.

triennial Phonetic & Pronunciation

Pronunciation
UK /traɪˈɛn.i.əl/
US /traɪˈɛn.i.əl/
Syllables
triennial

triennial Word Etymology

triennial = tri- (three) + annual (yearly). Originated from Latin 'triennium' through Old French to English. Picture a calendar flipping every three years, marking significant events.

Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.

Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.

Read the FAQ explanation of Comprehensible Input

Real Context

Triennial describes events or periods that happen every three years, or something that lasts for three years. It is formed from tri- meaning three and annual relating to a year. When a museum hosts a triennial exhibition, it occurs on a three-year cycle rather than annually. A triennial budget might be allocated over a three-year span, with planning, review, and reporting tied to that cadence. In law, a triennial review could mean assessments conducted every third year. Learners should note that the emphasis can be either frequency (every three years) or duration (lasting three years), and the correct interpretation depends on the surrounding words and context.

Usage Reminders

  • Use it for cycles or periods of three years. Clarify if it means occurrence or duration. Pair with words like every three years or lasting three years. It often appears in formal contexts. Do not confuse with biennial, which means every two years.

Common Misconceptions

  • Confusing triennial with biennial (every two years).
  • Assuming it always means a duration of exactly three years.
  • Thinking it is used in casual conversation rather than formal contexts.
  • Believing it describes a one-time event instead of a recurring cycle.
  • Misreading tri- as meaning three separate years rather than a three-year span.

Thinking Differences

English tends to separate frequency (every three years) from duration (three years) but learners must rely on context to choose.

Learning Tips

  • Create three examples: one for each-three-year frequency, one for three-year duration, and one combined.
  • Look for cue words like every, annually, for three years, or during three years.
  • Practice with timelines to visualize a three-year cycle.
  • Compare with biennial to keep the distinction clear.
  • Read formal texts (budgets, reviews) to see triennial used correctly.
  • Use flashcards pairing 'triennial' with both meanings to build flexibility.

5-Step Learning Method - Learn English in English

Step 1: Meaning

What is the definition of 'triennial'?

A.Happening every three years
B.Happening once a year
C.Happening every month
D.Happening every five years
Step 2: Usage

Which sentence uses 'triennial' correctly?

A.The company held its triennial meeting last week.
B.She goes to a triennial class every summer.
C.The festival is triennial and happens every July.
D.He has a triennial routine of waking up early.
Step 3: Similar Words

Which word is most similar to 'triennial'?

A.Bimonthly
B.Annual
C.Quinquennial
D.Decadal
Step 4: Opposite Words

What is the opposite of 'triennial'?

A.Biennial
B.Centennial
C.Annual
D.Decennial
Step 5: Mastery

Can you think of a real-life context related to 'triennial'?

A.The event takes place every year in New York.
B.The team has a monthly strategy meeting scheduled.
C.They organize a major exhibition every three years.
D.She plans to retire in ten years.

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