大姨 [－－]

Jyutping daai6 ji4
Pinyin dà yí

Definitions (粵典–words.hk)
  1. 名詞
    老婆​嘅​家​姐
    sister-in-law; older sister of one's husband
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）
  2. 大姨子

大姨 [－－]

Jyutping daai6 ji1
Pinyin dà yí

Definitions (CC-CEDICT)
  1. aunt (mother's eldest sister)
  2. (respectful term of address for a woman who is about the age of one's mother)
Definitions (Wiktionary)
  1. noun
    oldest maternal aunt (mother's eldest sister)
  2. noun
    sister-in-law (wife's elder sister)
    (syn.) 姨姐, 大姨子
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    他的大姨妈来了。
    他的大姨媽來了。
    tā de dà yí mā lái le 。
    • She's on the rag.
Examples (粵典–words.hk)
  1. Cantonese
    我大姨妈嚟咗。
    我大姨媽嚟咗。
    ngo5 daai6 ji4 maa1 lai4 zo2.
    • My period has come.
Examples (Wiktionary)
  1. Mandarin
    来大姨妈
    來大姨媽
    lái dà yí mā
    • to be on one's period