The words that are of Spanish origin. In Spanish the J is pronounced as H is in English. There are FAR too many to list.
jalapeno
This would happen with English words that are borrowed from Spanish. The first one that pops into my head is "jalapeno"...jai alai..Jose...
pharynx
There are I words with a silent E, such as bite, dime, and while. There are I words spelled with GH such as high, sigh, light, and right. There are I words that begin with the prefix bi- which virtually always sounds like BY, or tri- which sounds like TRY. Examples are binary, bimonthly, and trimester.
Jalapeno peppers require soil that is moist, but firm. In other words, it can't be like mud. But, you do not want soil that is hard as a rock, either.
There are many words, but one example is the word "father" in which the 'a' sounds like the 'o' in box.
Words with 'gh' and 'kn' sounds are known as consonant clusters. The combination of 'gh' produces sounds like /f/ in words like "enough" or /g/ in words like "ghost." The 'kn' cluster typically produces the /n/ sound in words like "knight" or "knit."
serial
fete
the jalapeno is just like a bell pepper but hotter.there all in the same family and category
The Greeks don't (and didn't) use any letter shaped like that. A number of words begin with sigma (which sounds like s) although it is rather infrequent eg "sigma", "sou" "soi"
The word baby has two strong vowel sounds that sound like "ay" and "ee." Other words that emulate this include words like maybe.