intra-

/ˌɪn.tɹə/

prefix

Within a group or concept.

“intrabone”

Similar
in-en-em-im-end-endo-ecto-mid-
Opposite
ex-exo-ecto-
OriginLatin intrā ← Proto-Indo-European *h₁énteros →
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Meanings

prefix
  1. Within a single entity indicated by the root word:
    1. Within a group or concept.

      intraclade

      2 more examples

      intracoalition

      intracorporate

    2. Inside or with, in terms of location or position.

      intrabone

      2 more examples

      intracardiac

      intracolic

      Synonyms: in-, en-, em-, im-, end-, endo-, ecto-

    3. During, within a time period.

      intradiurnal

      2 more examples

      intraoperational

      intradecadal

      Synonyms: mid-, peri-

    4. Behaviour of a single individual.

      intrajudge

      2 more examples

      intradoctor

      intraparticipant

  2. A direction that is inward or into the location indicated by the root word.

    intracloacal

    2 more examples

    intracavitary

    intracistern

  3. Indicating that the root is internal in nature.

    intranet

    3 more examples

    intramarry

    intrapreneur

    intraconnect

  4. In between two entities:
    1. Between two or more similar entities that are within a larger entity. The root indicates the commonality between the entities.

      intrachiral

      2 more examples

      intraploidy

      intra-allelic

    2. Spatially located in between two points within the region indicated by the root entity.

      intramedian

      2 more examples

      intragalactic

      intramolecular

    3. Spatially located in between the root entity and a reference point.

      intrapetiolar

      2 more examples

      intramercurial

      intraaxillary

  5. The interior of the region indicated by the root.

    intracranium

    1 more example

    intracalvarium

  6. A part of the root entity.

    intramountain

    1 more example

    intradiegetic

  7. In alignment or synchronous with the root entity.

    intrametric

    1 more example

    intradirective

Synonyms & antonyms

prefixInside or with, in terms of location or position.

Similar
in-en-em-im-end-endo-ecto-

prefixDuring, within a time period.

Similar
mid-peri-

antonym(s) of “inner”

Opposite
ex-exo-ecto-
Also see
en-end-in-inter-mid-peri-

Origin

  1. Proto-Indo-European*h₁én
  2. Proto-Indo-European*h₁énteros
  3. Latin*interus
  4. Latinintrā
  5. Englishintra-

Borrowed from Latin intrā (“within”).

More words from Latin

Full word history & related roots →

Translations

Bulgarian вътре-, интра-
  • вътре- (vătre-)prefix signifying inside, within, interior, during
  • интра- (intra-)prefix signifying inside, within, interior, during
Catalan intra-
  • intra-prefix signifying inside, within, interior, during
Czech nitro-, intra-
  • nitro-prefix signifying inside, within, interior, during
  • intra-prefix signifying inside, within, interior, during
Danish inder-
  • inder-prefix signifying inside, within, interior, during
Dutch intra-
  • intra-prefix signifying inside, within, interior, during
French intra-
  • intra-prefix signifying inside, within, interior, during
German intra-, inner-
  • intra-prefix signifying inside, within, interior, during
  • inner-prefix signifying inside, within, interior, during
Italian intra-
  • intra-prefix signifying inside, within, interior, during
Polish intra-
  • intra-prefix signifying inside, within, interior, during
Russian внутри-, интра-
  • внутри- (vnutri-)prefix signifying inside, within, interior, during
  • интра- (intra-)prefix signifying inside, within, interior, during
Spanish intra-
  • intra-prefix signifying inside, within, interior, during
Cite this entry
APA

intra-. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/intra-

MLA

“intra-.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/intra-. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “intra-,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/intra-.

Source: intra- on Wiktionary, CC BY-SA 4.0.