Words with the letters oy include: boy joy toy ahoy employ annoy enjoy soy coy Roy destroy ploy royal oyster convoy alloy (sp?)
Some words ending with OY are:ahoyalloyannoybatboybeachboybellboyboybuoybusboycloyconvoycorduroycowboycoydecoydeploydestroyemployenjoyenvoyhighboyhomeboyhouseboyjoykilljoylowboynewsboyoverjoypageboypaperboyplayboyploysavoyschoolboysoytallboytomboytoytroyviceroy
Hi. If you're including "oy" in the word; "enjoy" is a five letter word that ends with "oy" enjoy
The word "oyster" has two syllables: "oy-ster".
OY is a Yiddish word - it is usually part of the phrase "oy vey" which means "oh woe" or "alas" but occasionally you see it alone. It is a term of despair which is used as an exclamation in time of trouble and strife.
Some words with the oi sound include boil, coin, and spoil. Words with the oy sound include boy, joy, and toy.
I am = Soy Am = Oy
"Oy" is not a common suffix in English. However, it can be found in some words borrowed from Yiddish, such as "meshugge" or "oy vey." In this context, it can be considered a suffix.
One word is "pointless" (as in a useless act).
oy
Ahoy
The word "futile" fits the criteria for a 9-letter word meaning useless with the vowel sound oi or oy.
decoy, enjoy