In certain Ethiopic languages, sarcasm and unreal phrases are indicated at the end of a sentence with a sarcasm mark called temherte slaqî or temherte slaq, a character that looks like the inverted exclamation point (U+00A1) ( ¡ )

“Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo” is a grammatically correct sentence in American English

Quark, for example, was formerly a nonce word in English, appearing only in James Joyce’s Finnegans Wake. Murray Gell-Mann then adopted it to name a new class of subatomic particle.

test to see if a child has grasped basic pluralization

a short (pronounceable) pseudoword consisting most of the time of just one syllable which has no meaning of its own

both components of the digraph are always capitalized together: ijsland -> IJsland