What does "flex" mean?
Flexibility, pliancy.
Flex
/flɛks/ noun, verb, slang
noun, verb, slang ·Common ·High school level
Meaning at a glance
- Primary sense: Flexibility, pliancy.
- Grammar: flex is listed as noun, verb, slang.
- Nearest alternatives: arch, arched, arches, arcked.
- Useful contrasts: static schedule, conceal, downplay.
- Usage evidence: Militarily speaking, Gaza is utterly defenseless. That's why the IDF chooses this area to flex its muscles.
How to use "flex"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "flex" carries the exact meaning, tone, and strength you need.
- Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.
Meaning check
- Does the word fit the sentence's grammar?
- Does it match the intended tone rather than only the dictionary definition?
- Would a simpler synonym be clearer for the reader?
- Is there enough surrounding context to prevent ambiguity?
Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "flex" in a final draft.
If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.
Before you rely on this definition
Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "flex" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "flex" with a nearby alternative so the final choice matches both meaning and reader expectation.
Compare nearby meanings
- Use synonyms when you need a softer, stronger, simpler, or more specific word.
- Use antonyms to check the boundary of the meaning and avoid accidental contrast.
- Use the example sentence to confirm the word behaves naturally in context.
- Keep the original wording when a replacement adds complexity without improving precision.
Definition decision workflow
1. Identify the role
Check whether "flex" is acting as noun, verb, slang in your sentence. A definition is only useful when the grammar matches the way the word is being used.
2. Test the nearest option
Compare it with "arch" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.
3. Confirm with context
Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.
Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.
Final meaning check
Before publishing a sentence with "flex", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.
When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.
Definitions
Noun
- 1 Flexibility, pliancy. uncountable
- 2 the act of flexing wordnet
- 3 An act of flexing. countable
"The hills become more rounded. The slopes are either the stooped shoulders of an aging colossus or the muscular flexes of a geologic youngster, but they are pleasant, comforting. This landscape is what most would think of […]"
- 4 Any flexible insulated electrical wiring. Ireland, UK, uncountable
- 5 A flexible insulated electrical cord. countable
"The books lent her by Dr Grimble on period furniture and ceramics interested her deeply, and she studied them at night in the silence of the shop, where she had a flex and a reading lamp installed at her own expense."
Show 3 more definitions
- 6 Flexible ductwork, typically flexible plastic over a metal wire coil to shape a tube. uncountable
"Flex is quick and cheaper to install than metallic systems, but it yields higher pressure loss than other types of ducts and requires runs of less than 15 feet, minimal turns and elimination of kinks."
- 7 A point of inflection. countable
- 8 An act or instance of flaunting something; a boast or brag; something considered impressive. countable, slang
"Getting together with other power players at Masa is the ultimate flex of conspicuous consumption. […] A party of five or more requires a deposit of $200 per person at least one week prior to the reservation."
Verb
- 1 To bend something. transitive
"The board flexes as you step on it."
- 2 cause (an object) to assume a crooked or angular form wordnet
- 3 To repeatedly bend one of one's joints. transitive
- 4 bend a joint wordnet
- 5 To move part of the body using one's muscles. transitive
Show 6 more definitions
- 6 form a curve wordnet
- 7 To tighten the muscles for display of size or strength. intransitive
"He rubbed his hands together. "Believe it or not, there was a time when I considered giving acting a go. What do you think, Miss Fox?" He flexed impressive biceps. "Would I have had a chance against the Schwarzeneggers and the Chuck Norris types?""
- 8 contract wordnet
- 9 To boast or brag about; to flaunt (something). slang, transitive
"I've got billions and billions of rhymes to flex / 'Cause I've got more rhymes than Carl Sagan's got turtlenecks"
- 10 exhibit the strength of wordnet
- 11 To flaunt one's superiority; to show off. intransitive, slang
"I shook my head, wondering if I was gonna have to knock Pimp on his ass. "I don't know where," I flexed on him with my height advantage, "you getting all this 'soft' bullshit from, dawg, but you just keep fuckin around. I can show you gangsta better than I can tell you.""
Example
"Militarily speaking, Gaza is utterly defenseless. That's why the IDF chooses this area to flex its muscles."
Common questions
What is a synonym for "flex"?
Common synonyms include: arch, arched, arches, arcked, backbend, bend.
How do you use "flex" in a sentence?
Militarily speaking, Gaza is utterly defenseless. That's why the IDF chooses this area to flex its muscles.
How do you pronounce "flex"?
Pronounced /flɛks/.
Etymology
From Latin flexus, past participle of flecto (“to bend”).