What Does Slow Down Mean?
Slow down means to go at a lower speed, or to do things less quickly. It works for cars, bikes, runners and busy people.
The bus slowed down at the crossing.
You are talking so fast. Please slow down.
It also has a bigger use. You can slow something or someone down, which means to make it go slower.
The heavy backpack slowed me down.
🗣️ Natural Examples
The car slowed down near the school.
Please slow down. I cannot write that fast.
The muddy path slowed the runners down.
Can you slow the video down? I missed the best part.
My old laptop slows down when I open too many tabs.
✂️ Can You Separate It?
It depends on whether there is an object.
No object: nothing to split. The thing that slows is the subject.
✅ The train slowed down.
✅ Please slow down.
When you make something slower: separable. With a pronoun, it goes in the middle.
✅ The mud slowed down the bike.
✅ The mud slowed the bike down.
✅ The mud slowed it down.
❌ The mud slowed down it.
🛠️ How to Use It
- Past tense: slowed down. Past participle: slowed down.
- Orders and advice: Slow down! tells someone to go slower or to relax.
- Machines and screens: a computer or a phone can slow down when it has too much to do.
- People: you can slow down when life is too busy, meaning you do less and rest more.
⚠️ Common Mistakes
Put the pronoun in the middle.
❌ The rain slowed down us.
✅ The rain slowed us down.
Use up for faster.
❌ Please speed down.
✅ Please speed up or slow down.
💬 In a Conversation
Coach: You started far too fast. Slow down!
Sam: I can't. A bee is chasing me.
Coach: Then speed up. And slow down once it leaves.
💡 The OddLingo Trick
Here is the odd part. Slow down and slow up both exist, and both mean about the same thing. But you cannot say speed down. For going faster, only speed up works.
So the trick is: down goes with slow, up goes with speed.
👯 Similar Expressions
- Calm down: another phrasal verb where down means less. Here you reduce feelings instead of speed.
- slow up: a twin that also means to lose speed.
- speed up: the opposite of slow down.