Pronunciation guide: IPA symbols, stress and word endings

θ	thin	ð	this	ʃ	she	ʒ	measure
tʃ	church	dʒ	judge	ŋ	sing	j	yes

p b t d k g f v s z h m n l r w sound as in ordinary English spelling.

ˈ main stress, before the stressed syllable: /ˈwɔːtə/ water · ˌ lighter (secondary) stress: /ˌʌndəˈstænd/ understand
ː a long vowel · (r) an r said only in accents that pronounce it (most American, Scottish, Irish)

-s / -es (plurals; he/she form of verbs): /s/ after voiceless sounds (cats), /z/ after voiced (dogs), /ɪz/ after s, z, sh, ch, j sounds (buses, watches). Spelling: -es after s, x, z, ch, sh; consonant + y → -ies (city → cities).
-ed (past): /t/ after voiceless sounds (walked), /d/ after voiced (played), /ɪd/ after t or d (wanted). Spelling: love → loved, stop → stopped, carry → carried.
-ing: make → making, run → running, see → seeing.
Irregular: go, went, gone · be, was, been · see, saw, seen · man → men · child → children · mouse → mice.
Older (King James) forms: -eth = -s (he loveth = he loves) · -est with “thou” (thou lovest) · spake = spoke.

io

UK /ˈaɪəʊ/ · US /ˈaɪoʊ/ noun, interjection, proper noun

Forms ios

noun A type of moth, the io moth.
interjection (rare) An exclamation of joy or triumph.
proper noun (Greek mythology) The daughter of Inachus river god, and a lover of Zeus, turned by the latter into a heifer.
proper noun (astronomy) A moon of Jupiter, known for its volcanic activity, peppered with about 400 active volcanoes.
proper noun (astronomy) 85 Io, a main belt asteroid; the asteroid shares its name with the Jovian moon

Etymology

From New Latin, from Ancient Greek Ἰώ (Iṓ, “Io”).

From Latin iō; compare Ancient Greek ἰώ (iṓ, “oh!”).

Borrowed from Latin Io, from Ancient Greek Ἰώ (Iṓ).

Etymology [L.; cf. Gr. "iw`.]

Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “io”, CC BY-SA 4.0. Details