SET OFF

National Parks

📖 Definition

Set off means to begin a journey or to trigger a particular event or reaction. It often implies the start of something significant or noticeable.

Examples in context

📖 Definition

Set off means to begin a journey or to trigger a particular event or reaction. It often implies the start of something significant or noticeable.

📝 Grammar Info

Separable
Yes
The object can be inserted between the verb and the particle.
Register
Neutral
This phrase is suitable for both formal and informal contexts.
Transitive
Yes
Requires an object to complete its meaning.

📊 Conjugation Table

Tense Form Example
Present Simple set off They set off on an adventure every summer.
Past Simple set off He set off fireworks to celebrate the occasion.
Present Continuous setting off She is setting off on a trip across Europe.
Present Perfect have set off We have set off alarms every time we arrive.

💡 When to Use

Starting a journey
Use when beginning a new trip or adventure. Provides a sense of embarking on something significant.
Example: "They set off on a backpacking trip across the mountains."
Triggering events
Apply when discussing actions that cause immediate responses or reactions. Indicates a causal effect.
Example: "The announcement set off a wave of excitement among the fans."
Initiating change
Useful for describing instances where a series of changes or processes begin. Marks the start of transformation.
Example: "Her idea set off a series of innovations in the industry."

⚠️ Common Mistakes

Using non-separable form
❌ Wrong: Set off the fireworks it.
✅ Correct: Set the fireworks off.
💡 Tip: Remember: object can be placed between 'set' and 'off'.
Incorrect tense
❌ Wrong: She setted off early.
✅ Correct: She set off early.
💡 Tip: Set off is irregular; past tense is set off.
Ignoring object requirement
❌ Wrong: They set off.
✅ Correct: They set off on a journey.
💡 Tip: Always pair 'set off' with an object, like 'journey'.
Practice

SET OFF - IN PRACTICE

Study Method Proposal

  1. Listen and repeat the audio as many times as needed to improve your pronunciation
  2. Use the audio as a dictation exercise, trying to write what you hear and understand
  3. Create a new sentence following the structure of the example sentences

Examples in Context

Synonyms & Antonyms

Synonyms

embark trigger

Antonyms

halt

Quick Check

Complete the sentence with the correct phrasal verb:

"After packing their bags, they decided to ___ off early in the morning."

sit
set off
stand
stay

"To set off on a journey is to open the door to endless possibilities and unforeseen challenges, which ultimately shape our true selves."

In Context

In 1804, Meriwether Lewis and William Clark set off on a historic expedition commissioned by President Thomas Jefferson. Their journey, known as the Lewis and Clark Expedition, aimed to map the newly acquired Louisiana Territory and find a practical route across the western United States. Setting off from St. Louis, Missouri, the team faced numerous challenges, including harsh weather, difficult terrain, and uncharted paths. During the expedition, Lewis and Clark set off several times to explore different routes, encountering diverse Native American tribes along the way. These interactions were crucial, as the explorers received essential guidance and support to navigate the land. As they continued their journey, they set off a wave of interest and curiosity in the American West, sparking further exploration and settlement. After two years, the expedition returned, having succeeded in mapping vast territories and establishing a foundation for America's westward expansion. The journey not only set off a significant era of exploration but also left an enduring legacy of courage and discovery.

❓ Frequently Asked Questions about Set Off

What is the origin of set off?

+
The phrase 'set off' comes from Middle English, initially meaning to start moving. Over time, it evolved to include starting journeys and triggering events.

Can set off be used in formal and informal contexts?

+
Yes, 'set off' is versatile in both formal and informal settings. It's appropriate when discussing travel plans in meetings or telling friends about adventures.

What is the difference between set off and embark?

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While both mean to begin a journey, 'embark' suggests a more formal or grand start, often relating to ship or plane voyages, while 'set off' is more general.

Related Phrasal Verbs

Explore more phrasal verbs in our dictionary:

take offrun up againstsee assell forsettle down
Browse All National Parks Phrasal Verbs
National Parks Phrasal Verbs - WeeklyCross
Alessandra Nóbrega
About the Author

Alessandra Nóbrega

History teacher who fell in love with English! This passion led me to specialize in languages and work on bilingual education projects. With 37 years in education, I believe learning should be meaningful – not just memorization.

Learn more about my journey



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