Words from Latin ending in -us form plurals ending in i, e.g. cacti and alumni and more rarely syllabi.
As octopus is not Latin, the plural octopi is considered erroneous, although often used.
The Greek letters chi, pi, psi and xi have long i sounds.
Some words with a long i not at the end of the word include Biology, diary, finance, giant, iota, mitosis, pica, rhinoceros, siren, tiny, violent, and wily.
vase
beginning
Some words with the letter i at the end of a syllable are:librarydinosaurfamilyfinallyradio
Jujustu and caribou are two words that end with a long U sound.
Some words with the letter i at the end of a syllable are:librarydinosaurfamilyfinallyradio
Almost all of the words that end in AY with an "ay" sound (bay, day, hay, say) are at the end of a syllable. It is the AI words that often do not (gain, sail, maim). Other words that have a long A sound are spelled with EY, including obey, prey, and grey. Also words from French that end in E, EE, or ET have a long A sound, such as cafe, soiree, gourmet, buffet.
Some one syllable words that end with A are:abrafleamapaseaspatea
ma-ven, sta-ble, Ta-ser, ba-by
A few examples of words with the letter E at the end of a syllable are "table," "castle," "toggle," and "waffle."
Location
recent, decent, legal, zebra
Radio has an open syllable with 'a' at the end: Ra-di-o.Volcano has an open syllable with 'a' at the end: Vol-ca-no.Savior does not have an open syllable with 'a' at the end: Sav-ior.Nature has an open syllable with 'a' at the end: Na-ture.Unable has an open syllable with 'a' at the end: Un-a-ble.