function - Master This Word
Master this word with our 5-step learning method – Learn English in English
function Word Meanings
- an activity or purpose natural to or intended for a person or thing
- a mathematical relation or expression
- to perform a specified action or role
function Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
function Phonetic & Pronunciation
UK
/ˈfʌŋkʃən/
US
/ˈfʌŋkʃən/
function Word Etymology
From Latin 'functionem' (nominative 'functio') meaning 'performance, execution' (from 'fungi' meaning 'to perform'). Imagine a machine, like a computer, that performs various functions like calculating or displaying images, representing its role and purpose.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputEnglish Brain Route
First I reach for the switch, I push it and the light wakes up. The dial turns and the fan begins to move, and I feel a quick push of effort as I keep a steady pace. I adjust my grip, set the timer, and the rhythm shifts with each small turn. In that flow, the idea lands: this thing is meant to do a task, to hold its place in a plan, to perform a chosen action—the function it’s meant to serve.
Real Context
Function is a flexible word with two core uses: as a noun describing the purpose, role, or natural activity of a person or thing, and as a noun or verb in math and computing describing a rule or operation that maps inputs to outputs or performs a task. In everyday speech you’ll hear about the function of a device, the function of a committee, or how a program’s function is implemented. In mathematics a function assigns each input exactly one output, typically written f(x). In computing, a function is a named block of code that performs a task and can be called from other parts of a program. Recognize phrases like “function properly” and “functional programming” to expand usage.
Usage Reminders
- Know when function is a noun or a verb
- Think of function as purpose, role, or operation
- In math, remember each input has one output (f(x))
- In computing, a function is a named block of code to perform a task
- Use common collocations like function properly, functional programming, and function of a tool
Common Misconceptions
- Function is only about math and charts
- A function can have more than one output per input
- Every noun form is a verb form
- To function always means to be excellent
- Function and purpose are completely unrelated concepts
Thinking Differences
Native English users often separate function as either a purpose/role (noun) or a mathematical/technical rule (noun/verb). Learners may mix up function with purpose or confuse function with a career role.
Learning Tips
- Identify whether function is used as a noun or a verb in context
- Link function to both purpose and action in everyday scenarios
- Remember the math rule: one input equals one output (f(x))
- Practice common collocations: function properly, functional programming, tool function
- Compare with related words like role, purpose, operation
- Read tech/sci passages to see multiple senses in action
5-Step Learning Method - Learn English in English
Step 1: Meaning
What is the meaning of the word 'function'?
A.Movement
B.Safety
C.Color
D.Purpose
Step 2: Usage
How is the word 'function' used in a sentence?
A.He ate a delicious function.
B.The function was blue in color.
C.She asked the function of the machine.
D.I slept in a function.
Step 3: Similar Words
Which word is a synonym of 'function'?
A.Disorder
B.Confusion
C.Stillness
D.Purpose
Step 4: Opposite Words
Which word is an antonym of 'function'?
A.Efficiency
B.Active
C.Dysfunction
D.Normal
Step 5: Mastery
In what real-life context would you hear the word 'function'?
A.At a park talking about the function of a tree.
B.At a concert talking about the function of a microwave.
C.At a hospital discussing the function of a car.
D.At a business meeting discussing the function of a new software program.
Related Listening
🔥 Advanced
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