iffvsITCWhat's the difference?

Quick tell: iff is a conjunction, ITC is a name, so they fill different roles in a sentence.

Which to use

“iff” is a conjunction and “ITC” is a name - they look or sound alike but fill different roles in a sentence.

#45,443
“iff” frequency rank
#34,549
“ITC” frequency rank
79992
confusion score

Side-by-Side Comparison

Feature iff ITC
Definition Abbreviation of if and only if. Initialism of Independent Television Commission.

Where the spellings diverge

Shared letters are muted; the letters that actually set iff and ITC apart are highlighted. They share 1 letter in sequence, which is exactly why the eye skips the difference.

3 ch
iff
3 ch
ITC

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: iff is aconjunction and ITCaname. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 79992, derived from the frequency rank of both members and their visual similarity.

iff is recorded at frequency rank #45,443, classified as aconj, pronounced /ɪf ən(d)ˈəʊn.li ɪf/. ITC is at rank #34,549, tagged as aname.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 79992, this pair ranks #20,814 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of iff vs ITC

Shared letters: i. Private to "iff": f. Private to "ITC": ct.

"iff" · 3 letters · shape VCC  ·  "ITC" · 3 letters · shape VCC

Frequency comparison

iff#45,443
ITC#34,549

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "iff" and "ITC" be used interchangeably?
No - they are not even the same part of speech. "iff" is a conjunction and "ITC" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "iff" or "ITC"?
"ITC" is the more common of the two: it sits at frequency rank #34,549 in our English list, against #45,443 for "iff". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering iff vs ITC

The fastest way to pick the right one every time.

  • Check the role first: if you need a conjunction, it's “iff”; for a name, it's “ITC”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “iff” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list