are the following japanese words normally written in hiragana or kanji?

[Caine S]

i got this vocab from a kinda old book so fell free to give alternatives to these words

if you translate all of these for me you are now my best friend

yuubin kyoku(post office)
enpitsu(pencil)
obaasan (grandma)
jisho-dictionary
dai gaku-university
ioshoni-together (how use this one)
tahai-ciggarette
kirei-pretty
gakkou-school (what kind?)
ojiisan-grandpa/oldman
akai-red
ojisan-uncle/middle aged man
aoi-blue/green?
tooi-far
kuroi-black
omosjiro-interesting
sakka-author
itsuchi-agreement
oishi-tasty
byouin-hospital
hatsukiri-clearly (how use this word?)