intra-

/ɪn.trə-/ (bre, ipa) · /ɪn.trə-/ (ame, ipa) · /ˈin-trə, -(ˌ)trä/ (ame, mw)

intra- — prefix

1. a prefix that combines with nouns to make adjectives with the sense of happening

1.字首B2
釋義

a prefix that combines with nouns to make adjectives with the sense of happening or existing inside a particular place, group, or thing

例句

Intra-company disputes are handled by an internal committee before going to court.

intra- + company → adjective

The nurse checked the intravenous drip to make sure the patient was receiving enough fluids.

intra- + venous → medical compound

同義詞
  • endo-

    scientific synonym used mainly in biology and medicine; e.g. endoskeleton, endothermic

反義詞
  • inter-

    means 'between' rather than 'within'; e.g. inter-company vs intra-company

  • extra-

    means 'outside' rather than 'within'; e.g. extracurricular

文法句型

intra- + noun → adjective describing something inside that noun

用法筆記

A productive prefix from Latin. Attached to a noun, it forms an adjective meaning 'inside that thing'. Very widely used in medical, scientific, and business vocabulary. The most common learner error is confusing it with inter- (which means 'between').

常見錯誤

❌Inter-company meetings happen within one team.
✅Intra-company meetings happen within one team.
💡inter- means 'between groups'; intra- means 'inside one group'.
❌The report covers inter-departmental communication inside the same office.
✅The report covers intra-departmental communication inside the same office.
💡use intra- when the communication stays within one organisation.