金石 [－－]

Jyutping gam1 daam3
Pinyin jīn shí

Definitions (粵典–words.hk)
  1. 名詞
    各種​青銅器​同​石刻​碑板​，​意指​古代​用​嚟​歌功​頌​德​嘅​文字​；​亦​指​各種​篆刻
    scriptures, engravement; literally: gold and stone

金石 [－－]

Jyutping gam1 sek6
Pinyin jīn shí

Definitions (CC-CEDICT)
  1. metal and stone
  2. fig. hard objects
  3. inscription on metal or bronze
Definitions (Wiktionary)
  1. noun
    bells and chime stones used in ancient Chinese music
  2. noun, figuratively
    hardness and strength; adamant
  3. noun
    inscriptions on ancient bronzes and stone tablets
  4. noun
    metal and stone
Examples (粵典–words.hk)
  1. Cantonese
    呢场赛事有唔少靓马参赛，系马匹实力嘅试金石。
    呢場賽事有唔少靚馬參賽，係馬匹實力嘅試金石。
    ni1 coeng4 coi3 si6 jau5 m4 siu2 leng3 maa5 caam1 coi3, hai6 maa5 pat1 sat6 lik6 ge3 si3 gam1 sek6.
    • Competing in this race are some good horses. It is a touchstone for their strength.
Examples (Wiktionary)
  1. Mandarin
    这种事情是夫妻感情好坏的分水岭，试金石！
    這種事情是夫妻感情好壞的分水嶺，試金石！
    zhè zhǒng shì qíng shì fū qī gǎn qíng hǎo huài de fēn shuǐ lǐng ， shì jīn shí ！
    • This (a couple's sex life) is the kind of thing that is a critical indicator, an acid test, of how a husband and wife feel about each other!