The most useful began synonym is started, and it fits almost any sentence. For other tones you can use commenced (formal), kicked off (casual), launched (a project or product) or set out (a trip or a goal). When something began on its own, like a storm or a rumor, try arose or broke out.
Every begin synonym below comes with its past form and a grammar note, because some of these verbs need a different pattern after them. For the noun, see beginning synonyms.
Swatch at a glance
Best swaps
start, commence, launch, set outPart of speech
Verb (begin, began, begun)Most formal
commence, initiate, inaugurateMost casual
kick off, get goingAntonyms
end, finish, stop, concludeWatch out
Embark needs on: embark on a career, not embark a career.Word forms covered
begins, began, begun, beginning
Began synonym table with past forms
Because many people search for the past tense, this table lists each swap as it would replace began.
| Instead of began | Use when | Line |
|---|---|---|
| started | Almost always | The class started at nine. |
| commenced | Formal events, legal or academic text | The hearing commenced on Monday. |
| kicked off | Casual, events and campaigns | The festival kicked off with a parade. |
| launched | Projects, products, attacks | The team launched a new app. |
| set out | Journeys and goals | They set out at dawn. |
| arose, emerged | Problems or ideas that appear | A dispute arose over pay. |
| broke out | Wars, fires, fights, disease | A fire broke out in the kitchen. |
The casual to formal ladder
On the scale above, each step sounds a little stiffer than the last. Kick off comes from sport and suits events. Get going is spoken English for finally starting. Start sits in the middle and is never wrong. Initiate fits processes and talks: initiate a refund. Commence is the stiffest; use it for ceremonies, contracts or formal notices, not for a movie night.
Many style guides prefer start or begin over commence in plain writing, so save commence for when you want that formal ring.
Grammar that changes with the verb
- Begin and start take both patterns: began to cry and began crying.
- Commence prefers a noun or -ing: commenced work, commenced drilling.
- Set about takes -ing: she set about cleaning the garage.
- Embark on and launch into take a noun: embarked on a new career, launched into a long story.
- Take up means start a hobby or job: he took up running.
Remember the forms: begin, begins, began, begun. Write had begun, never had began.
Swaps for begin and begins
- The course begins in May becomes the course starts in May.
- The ceremony begins at noon becomes the ceremony commences at noon on a formal invitation.
- Let's begin becomes let's get started or let's kick off in a meeting.
- We will begin a new study becomes we will initiate a new study.
- Trouble begins when becomes trouble arises when.
A student essay said: "The war began in the north and soon began to spread." A cleaner version reads: "The war broke out in the north and soon spread south." Broke out suits sudden conflict, and the second begin was not needed at all.
Words for starting something new
When a person makes something begin, the choice depends on what it is. You found or establish a company or school, launch a product or campaign, open a shop, introduce a rule and inaugurate a building or a leader. Spark and trigger mean one event caused another to begin. See establish synonyms and introduce synonyms for more.
Near misses
Originate and emanate describe where something came from, not when it started. Appear means become visible, so it fits a problem that shows up but not a person who starts a task. Open works for a speech or a store but sounds odd for a habit. The start synonyms page compares the closest pair in depth.
Opposites of begin
End, finish and stop are the everyday antonyms. Conclude sounds formal and suits meetings or essays. Cease and terminate are official and a bit cold.
- The meeting ended at four.
- The contract was terminated early.
Browse more motion and change words on the action verbs hub, or try stop synonyms.
Frequently asked questions
Which past tense swap for began sounds most formal?
Commenced is the most formal, followed by initiated. Use them in official notices or academic writing.
Began or begun: which form goes where?
Began is the simple past, and begun is the past participle. So write she began, but she has begun.
Is start the same as begin?
In most sentences, yes. Start is a bit more common in speech, and only start works for engines and devices, so a car never begins.
Which verb means began suddenly?
Broke out fits wars, fires and illness. Erupted is stronger and suits anger, violence or loud noise.
How do people say begin in relaxed speech?
Kick off and get going sound relaxed and friendly. Get cracking is a casual British option.
Which antonyms of begin are most useful?
End, finish, stop and conclude. Conclude suits formal writing best.