Phrase guide

only if

conj · 2 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

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1

conj

Meaning 1

Not unless; used to introduce a necessary condition.

Definition source: English Wiktionary via Wiktextract

Examples

  • The company will succeed only if it has sufficient backing.
  • 1965 June 4, John W. Tukey, Data Analysis and the Frontiers of Geophysics, in Science New Series, 148(3675), page 1288, http://links.jstor.org/sici?sici=0036-8075%2819650604%293%3A148%3A3675%3C1283%3ADAATFO%3E2.0.CO%3B2-N This is a somewhat paradoxical conclusion, and we can be happy to learn that it follows only if we can trust, precisely and in detail, the assumed way in which the probability of occurrence of a deviation decreases as the size of that deviation increases.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adverb

Meaning 2

never except when

Definition source: Princeton WordNet 3.0

Examples

  • call me only if your cold gets worse

Meaning relationships

Synonyms: only, only when

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

9 source translations are retained for this English entry.

  • Chinese Mandarin: 只有...才 (zhǐyǒu...cái) — not unless
  • Finnish: vain, jos — not unless
  • French: ne que si — not unless
  • German: nur wenn — not unless
  • Hungarian: csak akkor — not unless
  • Hungarian: csakis akkor — not unless
  • Lithuanian: tik jei — not unless
  • Norwegian Nynorsk: berre viss — not unless
  • Polish: tylko jeżeli — not unless