mono–: meaning, definition, pronunciation and examples
C1Neutral to formal; widely used in academic, technical, and everyday contexts.
Quick answer
What does “mono–” mean?
A prefix meaning ‘one’, ‘single’, or ‘alone’.
Audio
Pronunciation
Definition
Meaning and Definition
A prefix meaning ‘one’, ‘single’, or ‘alone’.
A productive prefix used across fields (science, technology, medicine, art) to denote singularity, unity, or limitation to a single element. It can describe a state (monogamy), a structure (monorail), or a medical condition (mononucleosis).
Dialectal Variation
British vs American Usage
Differences
Minimal differences in prefix usage. Spelling differences may appear in the root word (e.g., monologue vs. monolog as a rare variant).
Connotations
Identical connotations of ‘singularity’ or ‘oneness’.
Frequency
Equally frequent in both varieties. The resulting compound words follow local spelling conventions (e.g., centre/center in ‘monocentric’).
Grammar
How to Use “mono–” in a Sentence
mono– + noun (monorail)mono– + adjective (monolingual)mono– + verb-based noun (monologue)Vocabulary
Collocations
Examples
Examples of “mono–” in a Sentence
verb
British English
- No direct verb form. Used in verb-derived nouns: 'to monologise'.
- The lecturer tended to monologise for the entire hour.
American English
- No direct verb form. Used in verb-derived nouns: 'to monologize'.
- He would monologize about his travels endlessly.
adverb
British English
- No direct adverb form. Concept expressed via adjectives: 'He spoke monotonously'.
American English
- No direct adverb form. Concept expressed via adjectives: 'She dressed monochromatically'.
adjective
British English
- A monochrome display
- A monotonous task
- Monolingual services
American English
- A monochromatic painting
- A monorail system
- Monosyllabic answers
Usage
Meaning in Context
Business
"The company has a near monopoly in the sector."
Academic
"The study focused on monolingual acquisition patterns."
Everyday
"I prefer monochrome photos for a classic look."
Technical
"Carbon monoxide is a dangerous, odourless gas."
Watch out
Common Mistakes When Using “mono–”
- Using 'mono' as a standalone word (it's a prefix).
- Misspelling as 'monno–'.
- Confusing 'mono-' (one) with 'macro-' (large) or 'micro-' (small).
FAQ
Frequently Asked Questions
Rarely. It's primarily a prefix. Informally, it can short for 'mononucleosis' or 'monophonic sound'.
They are synonyms (both mean 'one'), but are often not interchangeable due to word formation habits (e.g., 'unicycle' not 'monocycle', 'monorail' not 'unirail'). 'Mono-' is from Greek, 'uni-' from Latin.
Use 'mon-' before a vowel or 'h' (monarch, monism, monohydrate). Use 'mono-' before a consonant (monotone, monochrome).
Yes, in words like 'monotonous' (boringly uniform), 'monopoly' (exclusive control), or 'monologue' (a long speech ignoring others), it can imply limitation, dullness, or dominance.
A prefix meaning ‘one’, ‘single’, or ‘alone’.
Mono– is usually neutral to formal; widely used in academic, technical, and everyday contexts. in register.
Mono–: in British English it is pronounced /ˈmɒnəʊ/, and in American English it is pronounced /ˈmɑːnoʊ/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “On a mono diet”
- “Stuck in a mono groove”
- “He delivered a mono of complaints”
Learning
Memory Aids
Mnemonic
Imagine a MONOcle – a single lens for one eye. MONO– means ONE.
Conceptual Metaphor
SINGULARITY IS UNITY / SIMPLICITY (e.g., monochrome simplifies colour).
Practice
Quiz
What does the prefix 'mono–' primarily signify?