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.

roasting

UK /ˈɹəʊstɪŋ/ · US /ˈɹoʊstɪŋ/ adjective, noun

Also a form of roast

Forms roastings

adjective (colloquial) Very hot. “The day started out cool, but by noon it was roasting.”
noun The act by which something is roasted.
noun (figurative, colloquial) A strong rebuke or reprimand (usually from the recipient's point of view). “My boss gave me a roasting for last month's sales figures.”
noun (social media) The act of attempting to humiliating someone or being humiliated in such a way that it appears comedic, especially publicly.

Etymology

From Middle English rostynge; equivalent to roast + -ing.

a. & n., from Roast, v. Roasting ear, an ear of Indian corn at that stage of development when it is fit to be eaten roasted.

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

Sanskrit dictionary entries whose meaning includes “roasting” (best matches first).

भृज्ज् bhṛjj frying, roasting, baking;
भृष्टि bhṛṣṭi the act of frying, broiling, roasting.
भ्रज्जन bhrajjana the act of frying, parching, roasting;
पचत् pacat cooking, boiling, roasting, ripening, etc.
पच paca cooking, baking, roasting; digesting; ( as, ā ), m. f. cooking, maturing, etc.
भ्रज्ज् bhrajj frying, roasting, (at the end of a comp., e.g. dhānā-bh˚, roasting or parching grain, see Pāṇ. VIII. 2, 36.)
भर्जन bharjana roasting, frying, baking; annihilating; ( am ), n. the act of roasting, frying, scorching, parching; a fryin…
पाचक pācaka cooking, roasting, baking; causing digestion, digestive, peptic, tonic; maturing, bringing to maturity; ( as…