Dictionary

iff en · CCONJ · etymology 1

Pronunciation

• /ɪf ən(d)ˈoʊn.li ɪf/ (US)
• /ɪf ən(d)ˈəʊn.li ɪf/ (UK)
• (US) audio

Meanings

1. (abbreviation, alt-of) Abbreviation of if and only if.
   alt of if and only if
   • A rectangle is a square iff all four of its sides have the same length.

Relateds

if

Translations (16)

ru титтк (abbreviation of if and only if) · sv omm (abbreviation of if and only if) · hu acsa (abbreviation of if and only if) · ro ddacă (abbreviation of if and only if) · it sse (abbreviation of if and only if) · da hviss (abbreviation of if and only if) · no hviss (abbreviation of if and only if) · pt sse (abbreviation of if and only if) · fr ssi (abbreviation of if and only if) · pl wtw (abbreviation of if and only if) · nl desda (abbreviation of if and only if) · fi joss (abbreviation of if and only if) · es sii (abbreviation of if and only if) · de gdw. (abbreviation of if and only if) · he אםם (abbreviation of if and only if) · pt sss (abbreviation of if and only if)

iff en · CCONJ · etymology 2

Meanings

1. (alt-of, obsolete) Obsolete spelling of if.
   alt of if
   • For iff the patient be aſhamed to diſcloſe hiſ wounde to the phyſician which knoweth it not , phyſicke can not helpe him. 1565, Thomas Stapleton, A Fortreſſe of the Faith &c., Ihon Laet, the 2. part. 112