चाचाजीChachajiPaternal Uncle (Younger)
Chachaji (चाचाजी) is your father's younger brother — the junior paternal uncle in Hindi families. His wife is your Chachiji, and the respectful suffix -ji is almost always attached when speaking to him.
How your Chachaji connects to you
Who is your Chachaji?
Because a Chacha is younger than your father, he is often the uncle closest to you in age — the one who sneaks you sweets, joins your games, and takes your side against the grown-ups. In a joint household he lived under the same roof, a daily companion rather than an occasional guest. The word carries such warmth that India's first prime minister was affectionately known to children everywhere as Chacha Nehru.
How it's used
Nieces and nephews say Chachaji or Chacha directly, pairing it with the polite aap in most homes. For example: "चाचाजी, हमें कल मेले ले चलिए" (Chachaji, hamein kal mele le chaliye) — Chachaji, please take us to the fair tomorrow. Referring to him in conversation, you would say mere chachaji, my uncle.
Where Chachaji comes from
Chacha most likely began as a doubled nursery syllable — like papa or dada — used across North India for the father's younger brother. Its soft, repeated sound suits a relative treated as a lighter, second father.
Chachaji vs similar terms
Chacha is specifically your father's younger brother; his elder brother is your Tau, and your mother's brother is your Mama. Each uncle has his own wife-term too — Chachi, Tai, and Mami — so the single English word uncle covers at least three distinct Hindi relatives.
Did you know?
India's best-loved chacha is Jawaharlal Nehru — fondly called 'Chacha Nehru', with his birthday kept as Children's Day — a perfect snapshot of the chacha as the family's warm, indulgent uncle.
Frequently asked questions
What does Chachaji mean in Hindi?
Chachaji (चाचाजी) means your father's younger brother, a paternal uncle. The -ji ending adds respect, and his wife is your Chachiji. If the uncle is older than your father, the correct word is Tauji instead.
What is the difference between Chacha and Mama?
A Chacha is your father's younger brother, from the paternal side of your family; a Mama is your mother's brother, from the maternal side. Hindi never uses one word for both.
Related terms
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