What does extra- mean in English?
Extra- comes from the Latin extra, which means "outside" or "beyond". It shows that something is outside what is normal or goes beyond the expected limits. The central idea is always "outside" or "beyond".
ESEN
Prefix · outside / beyond / additional
extra-
Signals outside of, beyond, or in an additional degree: extraordinary, extraterrestrial, extracurricular.
Literary
Written by Bryan López, English teacher · Updated
The prefix extra- and the word extra
In formal English, extra- is a learned prefix that changes the meaning of the word that follows. But in informal English today, the word extra is also used as an adverb that means "too much": "She was being extra dramatic" means she was being overly dramatic. That casual use has no hyphen and is not a prefix, even though it sounds very natural among young people.
How it is used
Attaches to adjectives and nouns:
- extra- + spatial/category adjectiveterrestrial → extraterrestrialordinary → extraordinarymarital → extramaritalcurricular → extracurricular
- extra- + sense/judgmentsensory → extrasensoryvagant → extravagantpolate → extrapolatejudicial → extrajudicial
Pronunciation: /ˈekstrə/. In informal speech, "extra" alone is used as an intensifier: "She was extra tired" = She was extremely tired.
How it is pronounced
extra-/ˈekstrə/
Tap the button to hear how the prefix sounds. Each word in the table has its own audio.
Examples
Root word
With extra-
In a phrase
- ordinaryextraordinaryHer performance was so extraordinary that the jury gave a standing ovation.
- terrestrialextraterrestrialThe film depicts first contact with an extraterrestrial civilisation.
- curricularextracurricularShe balanced her studies with extracurricular activities like debate and swimming.
- vagantextravagantThe wedding was extravagant, with flowers flown in from three countries.
- maritalextramaritalThe scandal involved an extramarital affair kept secret for over a decade.
- sensoryextrasensoryESP refers to the alleged ability to receive information extrasensorially.
- polateextrapolateFrom early data, researchers extrapolated that millions would be affected.
Common mistakes
extraordinary = simply very good or impressive
extraordinary = literally outside the ordinary, remarkably exceeding normal standards in any direction
"Extraordinary" can describe both positive things (an extraordinary achievement) and negative or neutral things (an extraordinary amount of damage). It does not necessarily mean good — it means significantly beyond the normal standard.
extravagant = only about spending money
extravagant = exceeding normal limits in any domain: spending, style, gestures, promises
"Extravagant" originally means "wandering outside normal limits." Yes, it applies to excessive spending (extravagant expenditure), but also to exaggerated styles (extravagant fashion), disproportionate gestures (extravagant compliments), and unrealistic claims (extravagant promises).
A trick to remember it
Think of something that goes outside the normal limits: extra- = beyond the normal. extraordinary, extraterrestrial.
Practise what you learned
Exercise 1 · Form the word
Exercise 2 · Pick the right one
"The film depicts first contact with an ___ civilization that has been observing Earth for centuries."
Exercise 3 · Pick the right one
What is the literal meaning of "extravagant"?
Frequently asked questions
What does the prefix extra- mean in English?
The prefix extra- signals outside of, beyond, or in an additional degree: extraordinary, extraterrestrial, extracurricular.
How do you pronounce extra-?
The prefix extra- is pronounced /ˈekstrə/. For example, "extraordinary".
Can you give an example of a word with extra-?
"ordinary" becomes "extraordinary". It is a typical example of the extra- prefix.
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