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.

fifty

/ˈfɪfti/ numeral, noun

Forms fifties fiftie fitty fiddy

numeral The cardinal number occurring after forty-nine and before fifty-one.
noun (countable) A banknote or coin with a denomination of 50. “Do you want small bills or are fifties OK?”
noun (cricket) A batsman's score of at least 50 runs and less than 100 runs.

Synonyms

From Middle English fifty, from Old English fīftiġ, from Proto-Germanic *fimf tigiwiz (“five tens”). By surface analysis, five + -ty.

Etymology [AS. fiftig; akin to OHG. finfzug, fimfzug, G. fünfzig, funfzig, Goth. fimftigjus. See Five, and Ten, and cf. Fifteen.]

Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “fifty”, CC BY-SA 4.0. Details

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

पणिक paṇika at the end of an adj. comp. (e.g. pañcāśat-paṇika, consisting of fifty Paṇas).
सौभरि saubhari name of a Muni (married to the fifty daughters of Māndhātṛ and father of 150 sons).
असम्बाध a-sambādha unconfined, spacious, wide, large; open, accessible; ( ā ), f. a species of the Śarkarī metre, consisting of…
स्थाविर sthāvira or ī, am , thick, firm (Vedic); ( am ), n. old age (described as commencing after seventy in men and after f…
पत्ति patti a footman, foot-soldier, infantry; a pedestrian; a hero; ( ayas ), m. pl., name of a people; ( is ), f. the …
व्यय vyaya mutable, liable to change or decay; ( as ), m. disappearance, loss; perishing, decaying, decay, destruction,…
विरोधिन् vi-rodhin opposing, hindering, preventing, obstructing, besieging; obstructive; excluding, disqualifying; inimical, ad…
दुन्दुभि dundubhi a sort of large kettle-drum; a sort of poison; name of the fifty-sixth year in the Jupiter cycle of sixty ye…