infix

Low
UK/ɪnˈfɪks/US/ɪnˈfɪks/

Formal / Technical

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Definition

Meaning

To insert or implant something, especially within a word; a linguistic term for a morpheme inserted within a word.

In computing, a mathematical notation operator placed between its operands; also refers to the act of firmly establishing a belief or idea in someone's mind.

Linguistics

Semantic Notes

Primarily a technical term in linguistics and computing. In linguistics, infixes are rare in English (e.g., 'abso-bloody-lutely') but common in languages like Tagalog. The verb sense 'to fix in' is very formal and less common.

Dialectal Variation

British vs American Usage

Differences

No significant differences in meaning or usage. Both dialects use it as a technical linguistic term. The formal verb 'to infix' is equally rare in both.

Connotations

Highly academic or technical in both regions.

Frequency

Extremely low in everyday speech, used almost exclusively in linguistics, computing, or very formal literary contexts.

Vocabulary

Collocations

strong
linguistic infixinfix notationinsert an infix
medium
mathematical infixinfix operatoruse an infix
weak
rare infixformal infixcomplex infix

Grammar

Valency Patterns

to infix something in/into something (formal)an infix is used (technical)

Vocabulary

Synonyms

Strong

intercalateinterpolate

Neutral

insertembedimplant

Weak

place withinput inside

Vocabulary

Antonyms

prefixsuffixremoveextract

Phrases

Idioms & Phrases

  • None

Usage

Context Usage

Business

Virtually never used.

Academic

Central term in linguistics and formal grammar; used in computer science for operator notation.

Everyday

Extremely rare. May be encountered in advanced language discussions.

Technical

Precise term for a type of affix or mathematical operator placement.

Examples

By Part of Speech

verb

British English

  • The poet sought to infix a sense of dread in the reader's mind.
  • The surgeon will infix the microchip into the tissue.

American English

  • The cult leader tried to infix his ideology into the followers.
  • The programmer needed to infix the new operator into the expression.

adverb

British English

  • The element was placed infix within the compound.

American English

  • The data is structured infix, between the two variables.

adjective

British English

  • The infix notation is standard for arithmetic.
  • They studied infix morphological processes.

American English

  • Infix operators are common in programming languages.
  • The linguist gave a lecture on infix patterns.

Examples

By CEFR Level

B1
  • The word 'un-freaking-believable' has an infix.
  • In maths, the plus sign is an infix operator.
B2
  • Unlike prefixes and suffixes, infixes are inserted into the middle of a word stem.
  • In computing, infix notation requires parentheses to clarify order of operations.
C1
  • The linguist's paper analysed the rare phenomenon of infixation in English expletives.
  • Converting an expression from infix to postfix notation is a common programming task.

Learning

Memory Aids

Mnemonic

Think of IN+FIX: to FIX something INside a word.

Conceptual Metaphor

INSERTION (placing something into the middle of something else).

Watch out

Common Pitfalls

Translation Traps (for Russian speakers)

  • Do not confuse with the more common Russian word 'инфикс' which is a direct equivalent but is a highly specialised term. No everyday synonym exists.
  • The verb 'to infix' should not be used as a general synonym for 'to fix' or 'to repair'.

Common Mistakes

  • Using 'infix' to mean 'prefix' or 'suffix'.
  • Using the verb in everyday contexts where 'insert' or 'implant' is appropriate.
  • Pronouncing it as /ˈɪnfɪks/ (stress on first syllable). Correct stress is on the second syllable.

Practice

Quiz

Fill in the gap
In the expression '2 + 3', the plus sign is an operator.
Multiple Choice

In which field is the term 'infix' MOST commonly used?

FAQ

Frequently Asked Questions

No, it is a specialised term used almost exclusively in linguistics, grammar, and computer science.

Yes, in informal speech, expletives can be used as infixes for emphasis, e.g., 'fan-bloody-tastic' where '-bloody-' is the infix.

A prefix is attached to the beginning of a word (un-do), a suffix to the end (do-ing), and an infix is inserted into the middle of the word stem (abso-blooming-lutely).

Yes, but it is very formal and rare. It means to implant or insert something firmly, often an idea or object.