Depends upon context.
If placed at the end of a person's name (e.g. referring to someone named Prakash as Prakashji), it is a sign of respect or admiration. The class system of India (Caste System) has conferred a strong sense of social hierarchy. One would add "ji" to those occupying a higher social stratum. It may also be used in a familiar way to show genuine, respectful affection.
A common example is to call one's spiritual guide "Swamiji". The word Swami has the meaning of Teacher. To call one's spiritual teacher Swamiji indicates the devotion and respect that the student has.
ji
Grandfather in Hindi is said as "dada" or "dada ji".
Gandhiji is referred to as "गांधीजी" in Hindi.
Polar bear in Hindi is "ध्रुवीय भालू" (Dhruviya Bhallu).
In Hindi, your sister's husband is called "जीजा" (jija).
ji
I think it means, "Yes, it was this girl."
ji
pita, pita-ji (in modern Hindi papa) in bihar and lucnow area some say: ualid, ualid-ji
Grandfather in Hindi is said as "dada" or "dada ji".
Gandhiji is referred to as "गांधीजी" in Hindi.
Polar bear in Hindi is "ध्रुवीय भालू" (Dhruviya Bhallu).
"Gandhiji" is a term of respect and endearment used to refer to Mahatma Gandhi. "Ji" is an honorific suffix in Hindi that is used to show respect. So, "Gandhiji" essentially means "Respected Gandhi."
dadI ji दादी
information about rahim
In Hindi, your sister's husband is called "जीजा" (jija).
In Hindi we say PAPA .... pronounced as PAAPAA or simply DADDY OR DAD. One can say "PITAA JI" also.... but that is very traditional... Just a side note: Ji denotes respect and it's in best interest to use it as in "papa- ji" It should definitely be used, but not necessarily every time someone addresses their father