Standard Lemma guide

real-time

adj · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈɹiːəltaɪm/
  • /ˈɹiːltaɪm/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: R IY1 L T AY2 M Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Communicated as the events being responded to occur; communicated or proceeding without much delay.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: RT

Antonyms: none provided

2

adj

Meaning 2

Of a system: that responds to events or signals within a predictable time after their occurrence; specifically in which the response time must be within the maximum allowed, but is typically synchronous.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: RT

Antonyms: none provided

3

adjective

Meaning 3

of or relating to computer systems that update information at the same rate they receive information

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From real time.

Across languages

Translations

27 source translations are retained for this English entry.

  • Chinese Mandarin: 實時 /实时 (shíshí) — computer term
  • Finnish: reaaliaikainen — computer term
  • French: en temps réel — computer term
  • Georgian: რეალურ დროში (realur droši) — computer term
  • German: in Echtzeit — computer term
  • Hungarian: valós idejű — computer term
  • Indonesian: waktu nyata — computer term
  • Irish: fíor-ama — computer term
  • Italian: in tempo reale — computer term
  • Japanese: リアルタイムの (riarutaimu no) — computer term
  • Japanese: 実時間の (jitsujikan no) — computer term
  • Malay: masa nyata — computer term
  • Norwegian Bokmål: sanntids- — computer term
  • Polish: w czasie rzeczywistym — computer term
  • Portuguese: em tempo real — computer term
  • Romanian: în timp real — computer term
  • Russian: в реа́льном вре́мени (v reálʹnom vrémeni) — computer term
  • Russian: постоянный (postojannyj) — computer term
  • Serbo-Croatian: u stvarnom vremenu — computer term
  • Slovene: v realnem času — computer term
  • Slovene: sproten — computer term
  • Spanish: de tiempo real — computer term
  • Swedish: realtids- — computer term
  • Turkish: gerçek zamanlı — computer term
  • Turkish: eş zamanlı — computer term
  • Vietnamese: tức thời — computer term
  • Vietnamese: thời gian thực — computer term
Real reading context

real-time in complete knowledge articles