What does "set off" mean?

To begin a journey or trigger To start traveling, or to cause something to start.

How do you use "set off" in a sentence?

We set off at dawn. That set off the alarm. Don't set off without me!

Phrasal Verb BritishAmericanAustralian ★★★★★ Very Common Neutral

Meaning: To begin a journey or trigger

出发、触发

Emprender un viaje o activar

出発する、引き起こす

출발하다, 작동시키다

To start traveling, or to cause something to start.

开始旅程，或引发某事开始。

Comenzar a viajar, o hacer que algo se active.

旅を始めること、または何かを始動させること。

여행을 시작하거나, 무언가를 작동하게 하다.

Base verb: set

Particle: off

Separable: No — the verb and particle stay together

We set off at dawn.
我们黎明时出发
Partimos al amanecer
夜明けに出発した
새벽에 출발했다.
That set off the alarm.
那触发了警报
Eso activó la alarma
それがアラームを作動させた
그것이 경보를 울렸다.
Don't set off without me!
别不等我就走！
¡No os vayáis sin mí!
私を置いて出発しないで！
나 두고 출발하지 마!

Context: departure, journeys, triggers

Tone: purposeful

From setting oneself off on a journey.

Era: Modern

Generation: All ages

Social background: Universal