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Jyutping sai3 gaai3 dai6 jat1
Pinyin shì jiè dì yī

Definitions (CC-CEDICT)
  1. ranked number one in the world
  2. the world's first
Examples (Tatoeba—Cantonese-English)
  1. Cantonese
    我哋仍然系世界第一。
    我哋仍然係世界第一。
    ngo5 dei2 jing4 jin4 hai6 sai3 gaai3 dai6 jat1 。
    • We're still the best in the world.
Examples (粵典–words.hk)
  1. Cantonese
    长占世界第一
    長佔世界第一
    coeng4 zim3 sai3 gaai3 dai6 jat1
    • to rank first in the world for a long time
  2. Cantonese
    美国嘅军力系世界第一。
    美國嘅軍力係世界第一。
    • USA has the most powerful army in the world.
  3. Cantonese
    好心你份人就唔好咁自大,成日以为自己全世界第一啦!
    好心你份人就唔好咁自大,成日以為自己全世界第一啦!
    hou2 sam1 nei5 fan6 jan4 zau6 m4 hou2 gam3 zi6 daai6, seng4 jat6 ji5 wai4 zi6 gei2 cyun4 sai3 gaai3 dai6 jat1 laa1!
    • Come on. Don't be so arrogant to think that you are the number one the world!
  4. Cantonese
    呢两间大学并列世界第一。
    呢兩間大學並列世界第一。
    • These two universities are the top in the world.
Examples (Wiktionary)
  1. Mandarin
    世界第一大经济体
    世界第一大經濟體
    shì jiè dì yī dà jīng jì tǐ
    • world's biggest economy