忪 [－]

Jyutping zung1
Pinyin sōng

Definitions (Wiktionary)
  1. character
    Used in 惺忪 (xīngsōng).
Definitions (Unihan)
  1. quiet, calm, tranquil, peaceful
  2. Cangjie Input
    PCI

忪 [－]

Jyutping zung1
Pinyin zhōng

Definitions (CC-CANTO)
  1. restless/agitated
Definitions (Wiktionary)
  1. character
    terrified; frightened
    • 怔忪
      怔忪
      zhēng sōng
      frightened

忪 [－]

Jyutping sung1
Pinyin zhōng

Definitions (CC-CEDICT)
  1. restless
  2. agitated
Definitions (CC-CANTO)
  1. bleary
Examples (粵典–words.hk)
  1. Cantonese
    睡眼惺忪
    睡眼惺忪
    seoi6 ngaan5 sing1 sung1
    • sleepy eyes
  2. Cantonese
    大家睡眼惺忪，上到车都系继续闭目养神居多。
    大家睡眼惺忪，上到車都係繼續閉目養神居多。
    daai6 gaa1 seoi6 ngaan5 sing1 sung1, soeng5 dou3 ce1 dou1 hai6 gai3 zuk6 bai3 muk6 joeng5 san4 geoi1 do1.
    • We were all so sleepy, so once we got on, we mainly got some shut-eye.
Examples (Wiktionary)
  1. Mandarin
    怔忪
    怔忪
    zhēng sōng
    • frightened