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Word of the Day Tuesday, June 9, 2026

iff

/ɪf/ conjunction · British & US
Valid in UKValid in US
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What does iff mean?

conjunction

Used to indicate a condition or assumption, especially one that is hypothetical or uncertain. It is often used in mathematical and logical contexts to represent 'if and only if'.

Example

"The company will only hire candidates who have a degree from a top-tier university, iff they have relevant work experience."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for iff

Rhymes with iff

Etymologically related