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Jyutping lam1 gung1 tau4
Pinyin lín gōng tóu

Definitions (Wiktionary)
  1. noun, Cantonese
    The Chinese character component 冖 or 宀.
    (syn.) 盖头, 蓋頭, 禿寶蓋, 秃宝盖

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Jyutping lam1 gung1 tau2
Pinyin lín gōng tóu

Definitions (粵典–words.hk)
  1. 名詞
    用​嚟​做​「​上​偏旁​」​嘅​部首​「​冖​」​(​量​詞​:​個​)
    Kangxi radical "冖" used on the top of a character
  2. 參看
    冖、冧公頭
Definitions (Kaifangcidian)
  1. 寶蓋頭 – 宝盖头
  2. 禿寶蓋 – 秃宝盖
  3. 寶蓋兒 – 宝盖儿
  4. 禿寶蓋頭 – 秃宝盖头

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Jyutping lam3 gung1 tau4
Pinyin līn gōng tóu

Definitions (CC-CANTO)
  1. roof (figuratively meaning protection)/Kangxi radical 14 冖