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.

staircase

/ˈstɛɹˌkeɪs/ noun, verb

Forms staircases staircasing staircased stair-case

Synonyms

From stair + case.

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

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

सोपान sopāna stairs, steps, a staircase, a ladder.
निःश्रयणी niḥ-śrayaṇī or niḥ-śrayiṇī, f. a ladder, a staircase, steps, etc.;
निश्रयणी ni-śrayaṇī a ladder, staircase; (also written niḥ-śrayaṇī, niḥśrayiṇī, q.v.)
निःश्रेणि niḥ-śreṇi a ladder or staircase, a flight of stairs or steps; the wild date tree.
निश्रेणी ni-śreṇī a ladder, staircase; (other forms of the word are ni-śreṇi, f., niḥ-śreṇī, and niḥ-śreṇi, q.v.)
आरोहण ā-rohaṇa the act of rising, ascending; the rising or growing of new shoots, growing (of plants); Vedic a carriage; an…
सोपानत्व sopāna-tva the state or condition of stairs, the uses of a staircase.
मणिसोपान maṇi-sopāna steps or stairs set with jewels, a jewelled staircase; a staff or stick set with jewels (?).