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.

caller

/ˈkɔːlə/ noun

Forms callers

noun (telephony) The person who makes a telephone call. “―I’ve got someone on the line. ―Who’s the caller?”
noun A visitor. “a gentleman caller”
noun (bingo) The person who stands at the front of the hall and announces the numbers.
noun (programming) A function that calls another (the callee). “If the called function throws an exception, the caller should be prepared to handle the error.”
noun A whistle or similar item used to call foxes.
noun (dance) The person who directs dancers in certain dances, such as American line dances and square dances.

Synonyms

From Middle English callar, equivalent to call + -er.

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

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