JR is not a word. If you're asking how to say the letters J and R in Hebrew, it would be exactly the same as in English.
There is no Hebrew word for Jr. In Jewish tradition, a child is never named after a living parent, so there is no need for this word.
You say 'Yalda' in Hebrew
Has in Hebrew is: YESH
"Tikra" (תקרה) is how you say ceiling in Hebrew.
Inawah has no meaning in Hebrew
Mustache is 'Safam' in Hebrew
Network in Hebrew is 'Reshet'
that is apartment in Hebrew דירה
Shu'taf is partner in Hebrew
"Boyfriend" in Hebrew is "khaver."
Ken and in Hebrew כן
'Torture' in Hebrew is עינויים.