Klryz
Pronunciation guide: IPA symbols, stress and word endings

Vowels

iːseeɪsite / ɛbedæcat
ɑːfatherɒhot (UK)ɔːlawʊput
uːtooʌcupɜːbirdəabout
eɪdayaɪmyɔɪboyaʊnow
əʊ / oʊgo (UK / US)ɪəneareəhairʊətour

Consonants that look unusual

θthinðthisʃsheʒmeasure
tʃchurchdʒjudgeŋsingjyes

p b t d k g f v s z h m n l r w sound as in ordinary English spelling.

Marks

  • 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)

Common word endings

  • -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.

English Dictionary · 107,383 entries · Sources & licences

activation energy

noun

Forms activation energies

  1. noun (physical chemistry, physics) The energy required to initiate a reaction. For example, the flame from the fuse of a firecracker provides a small initial amount of energy, after which the explosive reaction proceeds by itself, releasing a considerably larger quantity of energy. A small push given to a stable but top-heavy object may cause it to fall over; the potential energy released during the fall was present in the system all along but could not be realized as long as the object was upright and balanced.

Synonyms

energy of activation

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