Vocapedia
Log inTry for Free

Looking up...

Explore

  • Words of the Year
  • Recent Lookups
  • Community Collections
  • How to Say

Dictionaries

  • English
  • Vietnamese
  • Japanese
  • Chinese
  • Spanish
  • French
  • Korean
  • German
  • Hindi
  • Italian

MY LEARNING

  • My Dictionary
  • My Collections
  • Reviews

Resources

  • Learning Resources
  • How It Works
  • Study Guides
  • Language Tips
  • FAQ
  • Getting Started
  • For Individuals
  • For Teachers

Community

  • Forum
  • Blog
  • Help Center
  • Partnerships

About

  • About Vocapedia
  • Contact Us
  • Feedback

Legal

  • Terms of Use
  • Privacy Policy
  • Cookie Policy
  • Accessibility
  • GDPR Compliance
© 2026 Vocapedia. All rights reserved.
  1. Home /
  2. Dictionaries /
  3. English Dictionary /
  4. flex

flex

/flɛks/
show off or display something impressively

He loves to flex his new car on social media.

He enjoys showing off his new car online.


informalslang

to show off or display something impressively, often to gain admiration or attention

She couldn't resist flexing her new designer bag.

She couldn't help but show off her new designer bag.

The athlete flexed his muscles after winning the competition.

The athlete displayed his muscles proudly after winning.

Commonly used in informal contexts, especially on social media.

general

to bend or move something in a flexible manner

The yoga instructor told her to flex her knees.

The yoga instructor instructed her to bend her knees slightly.

The material can flex without breaking.

The material can bend without breaking.

This is the more literal and general meaning of the word.

Collocations

flex musclesshow off physical strength or powerflex onshow off to someone, often in a competitive way

Synonyms

show offdisplayflauntexhibit

Antonyms

hideconcealdownplay

Related Phrases

flexingphrase
the act of showing off
flex tapephrase
a brand of strong adhesive tape

Pro Tip

Context Matters

The meaning of 'flex' depends heavily on context. In slang, it means showing off, while in general usage, it refers to bending or moving something.

Gold Rule

Avoid Overuse

Using 'flex' too often in formal settings may come across as unprofessional.

Word Origin

From Latin 'flectere' meaning 'to bend', with modern slang usage emerging in the 21st century.

Usage Notes

The slang meaning of 'flex' is widely used in social media and informal conversations, particularly among younger generations.

Word Breakdown

flex
to bend or show off
root
English Dictionary
Browse more English→English words →

Learning Progress

Track your learning journey!

• Save words to build your vocabulary

• Monitor your daily streak

• Get personalized review reminders

• See words learned statistics

Log in to access advanced features and track your progress!

Go to Dashboard →

Words of the Year

The most notable words that defined each year. Discover the vocabulary that shaped our world.