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Jyutping sam1 si1 si1
Pinyin xīn sī sī

Definitions (Wiktionary)
  1. verb, Cantonese
    to constantly think about
  2. verb, Cantonese
    to itch; to long for

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Jyutping sam1 si1 si1
Pinyin xīn si sī

Definitions (CC-CANTO)
  1. (verb) itching to (a restless desire to do something); hankering to; longing to; to keep on thinking about something (adverb) to have something at the back of one's mind constantly
Definitions (粵典–words.hk)
  1. 形容詞
    諗​住​一個​人​或者​一樣​嘢
    to long for someone or something
    • 夜媽媽睇啲美食圖,搞到我都心思思想食添。
      夜妈妈睇啲美食图,搞到我都心思思想食添。
      je6 maa1 maa1 tai2 di1 mei5 sik6 tou4, gaau2 dou3 ngo5 dou1 sam1 si1 si1 soeng2 sik6 tim1.
      Seeing the images of food at night makes me yearn for eating them.
Definitions (Kaifangcidian)
  1. 惦著 – 惦着
  2. 盼著 – 盼着
  3. 老惦著 – 老惦着
  4. 惦念著 – 惦念着
  5. 念念不忘
  6. 老是想著 – 老是想着
  7. 老是盼著 – 老是盼着
  8. 心裡老想著 – 心里老想着
  9. 不停地想著 – 不停地想着
Examples (粵典–words.hk)
  1. Cantonese
    夜妈妈睇啲美食图,搞到我都心思思想食添。
    夜媽媽睇啲美食圖,搞到我都心思思想食添。
    je6 maa1 maa1 tai2 di1 mei5 sik6 tou4, gaau2 dou3 ngo5 dou1 sam1 si1 si1 soeng2 sik6 tim1.
    • Seeing the images of food at night makes me yearn for eating them.