Yes there is a word without those letters it's "crwth" it is an instrument.
Crwth a Welsh musical instrument. pronounced krooth Cwm, also Welsh.
It is just slang because words have to have vowels in them. (aeiou,,,y)
Y
They are vowels-and sometimes "y" also.
facetious abstemious arterious
These are the five standard (classic) vowels in the English language A E I O U , to which may be added the "semi-vowel" Y, and also W in Welsh.
One animal name without a "classic vowel" (AEIOU) is lynx(wildcat related to the bobcat).But in this case, the Y is a vowel.
Rhythms is the longest word in the English language that doesn't contain one of the recognised vowels, i.e. AEIOU
It is a single trigonometric equation in 2 variables. It cannot be solved without further information.
One or two. The Y can be considered as a vowel or as a consonant.
sin theta and csc theta are reciprocal functions because sin = y/r and csc = r/y you use the same 2 sides of a triangle, but you use the reciprocal.
One animal name without a "classic vowel" (AEIOU) is lynx. But the Y is a vowel in this use.