Flatten sth out Meaning / Examples / How to Use

What Does “Flatten sth out” Mean?

“Flatten sth out” means to make something flat or even by pressing or smoothing it. It can also mean to reduce sudden changes or variations in something.

Introduction

The phrase “flatten sth out” is a common phrasal verb used in English to describe the action of making a surface or object flat or smooth. It is often used in everyday situations, such as ironing clothes or smoothing dough. However, it can also be applied in more abstract contexts, such as reducing fluctuations in data or easing a difficult situation. Understanding the flatten sth out meaning helps learners use this phrase accurately in both physical and figurative contexts. This guide will explain its usage, grammar, examples, and common mistakes to help you feel confident using it.

Quick Info Box

• Phrasal verb: flatten something out
• Type: Transitive
• Level: B1 (Intermediate)
• Short meaning: To make something flat or smooth; to reduce variations

Structure (Grammar Rules)

“Flatten sth out” is a separable phrasal verb. This means you can place the object between the verb and the particle “out” or after the entire phrase.

• flatten something out
• flatten out something

Both forms are correct, but the first is more common in casual speech.

How to Use “Flatten sth out”?

You use “flatten sth out” when talking about making a surface even or smoothing it. For example, flattening dough or flattening a piece of paper. It can also describe reducing sharp changes or peaks, like in graphs, prices, or situations.

It is typically used with physical objects (e.g., fabric, land) or abstract concepts (e.g., trends, problems).

Examples

Here are some natural examples showing how to use “flatten sth out in a sentence”:

• She flattened the dough out before adding the toppings.
• We need to flatten out the wrinkles in this shirt before the meeting.
• The government aims to flatten out the economic ups and downs this year.
• They worked hard to flatten out the rough patches on the road.
• Flattening out the learning curve makes it easier for new employees.

Common Mistakes

Some learners confuse “flatten sth out” with other phrasal verbs or use it incorrectly with intransitive verbs. For example:

• Incorrect: The paper will flatten out by itself. (Here, “flatten out” is used intransitively, which is less common)
• Correct: I will flatten the paper out before folding it.
• Incorrect: Flatten out the problem. (Missing object: “sth” needs to be specified)
• Correct: Flatten the problem out by discussing it clearly.

Differences / Synonyms

“Flatten sth out” is similar to “smooth out” or “level off,” but each has its own nuances. “Smooth out” often means to remove small imperfections, while “flatten out” focuses on making something flat or reducing sharp changes. “Level off” is usually used for things like prices or numbers stabilizing.

For example:

• “Smooth out the fabric” means to remove wrinkles gently.
• “Flatten the fabric out” means to press it flat.
• “Prices leveled off after a period of increase.”

Common Collocations

Here are common objects and contexts used with “flatten sth out”:

• Dough: To prepare it for baking.
• Wrinkles: On clothes or paper.
• Surface: Of land or a table.
• Road: Fixing bumps or holes.
• Curve/graph: Reducing sharp peaks in data.

Related Phrasal Verbs

Here are related phrasal verbs of flatten sth out:

• Flatten Sth Against Sb
• Flatten Sth On Sb
• Flatten Sth Against Sth
• Flatten Sth On Sth

Real-life Dialogue

Listen to this short conversation using “flatten sth out”:

Anna: The tablecloth has some wrinkles. Can you flatten it out?

Ben: Sure, I’ll smooth it and flatten it out before the guests arrive.

Anna: Thanks! It will look much better.

Practice

Try this practice exercise to test your understanding:

Choose the correct sentence:

• a) I need to flatten out the paper before writing.
• b) I need to flatten the paper out before writing.
• c) I need to flatten out before writing the paper.

Answer: Both a) and b) are correct. c) is incorrect because the object must come with the verb.

FAQs

• Q: Can “flatten sth out” be used in a figurative way?
  A: Yes, it can mean reducing fluctuations or smoothing situations.
• Q: Is “flatten sth out” separable?
  A: Yes, you can separate the object and the particle “out.”
• Q: Can I say “flatten out” without an object?
  A: It is less common; usually, the object is needed.
• Q: What is the difference between “flatten sth out” and “smooth sth out”?
  A: “Flatten” means making flat, “smooth” means removing small imperfections.
• Q: Can “flatten sth out” be used for data or graphs?
  A: Yes, it means reducing sharp changes or peaks.