Sofu – “Grandfather”; Ojiisan – Someone Else's Grandfather Similarly to obaasan (おばあさん), ojiisan (おじいさん) can be used to talk about someone else's grandfather, or to address an elderly (respected) man, regardless of whether or not he has any children.
-Japanese: In Japanese, “Ojiisan,” is the name for grandfather, but it's often shortened to “Jiji.” Informally, grandfathers can also be called “Sofu.”
On paper, ojisan is a simple Japanese word. Dictionaries and textbooks give it two straightforward, primary definitions. The first, and most literal, is “uncle”. In this use, ojisan can be written in kanji as 伯父さん or 叔父さん.
Japan: Obaasan is the Japanese word for grandmother, but Japanese boys and girls are much more likely to call their grandmothers Sobo.
Japan. In Japan, most people use “Oto-san” which is a formal and polite word to call their father. While “Chichi” is used to refer to one's father when they talk to someone else, “Oyaji” (Old man) is an informal way for sons to call their fathers.
Chichi (父 / ちち) is the humble way to say father in Japanese. It is typically used when speaking about your father to somebody else. It can also mean father in a general context, like how it is used in chichi no hi (父の日 / ちちのひ) or Father's Day. Example: Chichi wa byouin ni tsutomete iru.
Baba - ばば – This is a very insulting and rude way to say, “Old lady.” This ugly tern is commonly used in Japanese anime and television shows. The insult is mostly used in an ironic manner in order to be funny.
“In our Indian culture, 'nani' is maternal grandmother, and 'dadi' is paternal. 'Nana' is maternal grandfather, and 'dada' is paternal,” shares Lisa Batra is a first-generation Indian, with immigrant parents, and two kids of her own.
Oh, yeah...Japanese has multiple words for the same number! Seven can be either "nana" or "shichi", for example.
Oba – “Aunt”
The pronunciation for aunt is very close to the word for grandmother. The primary difference is that the ending “a” vowel is long for obaasan (おばあさん) or “grandmother” and standard length for obasan (おばさん) or “aunt.” Add -san (-さん) to show respect when you are talking about someone else's aunt.
Dajare are also associated with oyaji gags (親父ギャグ, oyaji gyagu), oyaji meaning "old man", as an "old man" would be considered by the younger generation most likely to attempt dajare, making them a near equivalent of what would be called "dad jokes" in English.
Another way of calling a middle-aged Japanese men in an informal way is called → おっさん(Ossan). It comes from おじさん(Ojisan) which means uncle. However it also applies to adult men from age 40 and over. おっちゃん(Occhan) is another informal way of saying Ojisan but a little less impolite and softer than Ossan.
小父（おじ）さん is generic addressing word to an unfamiliar elder male. Mostly from a boy or girl to an adult male. You shouldn't call any strangers おじさん in general because you might upset them. It has a nuance of looking down on like you are talking to an old janitor or garbage man.
As noted above, yon (4) and nana (7) are preferred to shi and shichi. It is purported that this is because shi is also the reading of the word death (死), which makes it an unlucky reading (see tetraphobia); while shichi may sound too similar to ichi (1), shi or hachi (8).
Some love being called Grandpa, but others want to try on G-Pa, Poppy, Peepaw or Boppa on for size.
seven. し(shi)ち(chi) / なな(nana)
Very simply SHI means "AND". It is used to connect sentences in and is VERY VERY VERY often used in Japan.
In other words, it is your grandmother. In Australia, the Macquarie dictionary also uses the spelling nana. However, in British English, the spelling nanna is often used. Why is Grandma called Nana? The word nana originates from the Italian word for grandmother, Nonma.
noun. ˈna-nə plural nanas. informal. : the mother of one's father or mother : grandmother.
Your grandma is either your mom's mom or your dad's mom. Some people call their grandma "Granny" or "Nana" or "Oma." Grandma is a very common, informal way to say "grandmother." While the preferences of grandmas vary, many of them enjoy being known as Grandma to their grandchildren.
Baba - small, rich sponge cake usually soaked in rum.
“oraoraora” spoken quickly means something like “get out of the way” .
Jiji is written as “爺” or “ジジイ”. Its original meaning is “elderly man” or “grandfather”, but usually it's understood as “codger” as others noted. It's mainly used as self-derision or just for slandering somebody old, to represent one (including one by oneself) as an old man who is out of date.