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.

underweight

adjective, noun, verb

Forms underweights underweighting underweighted

adjective Of an inappropriately or unusually low weight. “He's so underweight he's had to buy smaller clothes.”
adjective Not too heavy for an intended purpose. “The suitcase is just slightly underweight; I'll let it on the plane.”
adjective (finance) Being less invested in a particular area than market wisdom suggests. “The fund is underweight in mining.”
noun (uncountable) The state or quality of being underweight.
noun (countable) An underweight person.
noun (countable, finance) An underweight investment.
verb (transitive) To underestimate the weight of.
verb (transitive) To give insufficient weight to (a consideration); to underestimate the importance of.
verb (transitive, finance) To invest in less than conventional wisdom would dictate.

Synonyms

From under- + weight.

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