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.

cool down

/kuːl ˈdaʊn/ verb

Forms cools down cooling down cooled down

verb To become cooler; to be reduced in temperature. “You can drink the coffee when it's cooled down.”
verb To become less agitated or excited. “I'd love to go to Israel, but I'll have to wait until the violence cools down.”
verb To decrease in degree or intensity.
verb To cause (something) to become cooler; to reduce the temperature of. “We had to cool down the equipment with water before using it.”
verb To cause (someone) to become less agitated or excited. “Dave was kicking and screaming, so I had to cool him down with some mellow music.”

Synonyms

Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “cool down”, CC BY-SA 4.0. Details