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.

grow up

verb, interjection

Forms grows up growing up grew up grown up

verb (intransitive) To mature and become an adult. “What do you want to be when you grow up?”
verb (intransitive) To start to develop; to flourish. “Socialism grew up in the industrial cities.”
verb (intransitive, idiomatic) To stop acting as or like a child (often used as an imperative interjection). “Will you grow up please, and stop making silly faces?”
interjection (imperative) Used to criticize childish behavior, especially that considered unreasonable for one's age. “You're giggling because I said "butt"? Grow up, seriously.”

Synonyms

Dissimilated from Middle English upgrowen.

Sources: Wiktionary — from the Wiktionary entry “grow up”, CC BY-SA 4.0. Details