Meaning of if and only if | Babel Free

Conjunction CEFR C2

/ɪf ən(d)ˈəʊn.li ɪf/

Definitions

Is equivalent to; implies and is implied by; is true and false in the same cases as.
Synonym of if (with added intensity)
broadly, informal

العربية شَرْطَ أَنّ شَرِيطَةً أَن فَقَط إِذَا

Čeština právě tehdy, když

Deutsch dann und nur dann, wenn genau dann, wenn

Ελληνικά αν και μόνο αν

Español si y solo si

Suomi jos ja vain jos

Français si et seulement si

עברית אם ורק אם

Italiano se e solo se

Nederlands als en slechts als dan en slechts dan als

Polski wtedy i tylko wtedy

Português se e somente se

Русский тогда́ и то́лько тогда́

Svenska om och endast om

Türkçe ancak ve ancak

Tiếng Việt khi và chỉ khi

“A rectangle is a square if and only if all four of its sides have the same length.”

“An integer is even if and only if its square is also even.”

“I'll let you go to the concert if and only if you clean your room.”

Mastery
This word is part of the CEFR C2 vocabulary — mastery level.