Phrase guide

day and night

adv · name · noun · 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.

  • US: Recorded audio is listed in the source snapshot.

1

adv

Meaning 1

All the time; round the clock; unceasingly.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

A Life-like cellular automaton with the rule B3678/S34678.

Definition source: English Wiktionary via Wiktextract

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Synonym of chalk and cheese (“two things that are very different”).

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: chalk and cheese

Antonyms: none provided

History

Etymology

Named for the fact that the rule is its own complement; toggling all cell states results in the pattern evolving similarly, but with living and dead cells switched.

Across languages

Translations

53 source translations are retained for this English entry.

  • Albanian: ditë e natë — all the time
  • Arabic: لَيْلَ نَهَارَ (layla nahāra) — all the time
  • Arabic: صَبَاحَ مَسَاءَ (ṣabāḥa masāʔa) — all the time
  • Armenian: օր ու գիշեր (ōr u gišer) — all the time
  • Azerbaijani: gecəbəgündüz — all the time
  • Azerbaijani: gecə-gündüz — all the time
  • Bengali: দিনরাত (dinrat) — all the time
  • Bengali: অহর্নিশি (ohorniśi) — all the time
  • Bengali: দিবারাত্রি (dibaratri) — all the time
  • Chinese Mandarin: 晝夜 /昼夜 (zhòuyè) — all the time
  • Chinese Mandarin: 日夜 (rìyè) — all the time
  • Danish: dag og nat — all the time
  • Dutch: dag en nacht — all the time
  • Finnish: yötä päivää — all the time
  • French: jour et nuit — all the time
  • Galician: noite e día — all the time
  • German: Tag und Nacht — all the time
  • Greek: νυχθημερόν (nychthimerón) — all the time
  • Hebrew: יומם ולילה (jomám va lájla) — all the time
  • Hebrew: יומם וליל (jomám va lájil) — all the time
  • Hindi: सुब्ह शाम (subha śām) — all the time
  • Hindi: दिन रात (din rāt) — all the time
  • Hungarian: éjjel-nappal — all the time
  • Hungarian: éjt nappallá téve — all the time
  • Japanese: 昼夜 (chūya) — all the time
  • Japanese: 日夜 (nichiya) — all the time
  • Japanese: 昼も夜も (hiru mo yoru mo) — all the time
  • Judeo-Italian: דִי אֵי נוֹטַה — all the time
  • Korean: 주야 (juya) — all the time
  • Korean: 밤낮 (bamnat) — all the time
  • Malayalam: രാപകൽ (rāpakal) — all the time
  • Malayalam: ദിനരാത്രം (dinarātraṁ) — all the time
  • Malayalam: അഹോരാത്രം (ahōrātraṁ) — all the time
  • Persian: شب و روز (šab-o-ruz) — all the time
  • Persian: روز و شب (ruz-o-šab) — all the time
  • Persian: شبانهروز (šabâne-ruz) — all the time
  • Polish: dzień i noc — all the time
  • Portuguese: dia e noite — all the time
  • Russian: днём и но́чью (dnjom i nóčʹju) — all the time
  • Russian: де́нно и но́щно (dénno i nóščno) — all the time
  • Serbo-Croatian: дан и ноћ — all the time
  • Serbo-Croatian: dan i noć — all the time
  • Spanish: día y noche — all the time
  • Swedish: dag och natt — all the time
  • Tamil: இரவுபகல் (iravupakal) — all the time
  • Tamil: இராப்பகல் (irāppakal) — all the time
  • Tamil: ராத்திரியும் பகலும் (rāttiriyum pakalum) — all the time
  • Telugu: పగలు రాత్రి (pagalu rātri) — all the time
  • Turkish: gece gündüz — all the time
  • Turkish: sabah akşam — all the time
  • Urdu: دِن رات (din rāt) — all the time
  • Urdu: صُبْح و شام (subh o śām) — all the time
  • Polish: niebo i ziemia — chalk and cheese