kuroi- black

糸　いと　ito- thread; yarn; string

to.......

tomodachi- friend

地域　ちいき　chiiki- area; region

ki,,,

兄弟 (きょうだい) kyoudai - Brothers & Sisters; siblings

aishiteru - I love you

Sorry Gorotsuki, but the word before you ended in い"i" not あい"ai" (which is not a Japanese hiragana, but a combination of two hiragana)

i'll continue with "i"
入口　いりぐち　iriguchi- entrance

chi...

一寸 (ちょっと) chotto - just a moment

I was going to put up the phrase chotto matte kudasai (which sorta means please wait), but figured just using "chotto" would be okay.

床屋　とこや tokoya- barber

In my opinion, the first step to learning Japanese is learning the alphabets hiragana and katakana. So while we shiritori fans include romaji (which is NOT Japanese), it would be best for you (if you are serious in learning the language) to master hiragana and katakana. Also, typing Japanese is very helpful to mastering hiragana and katakana, so playing shiritori with authentic Japanese characters will undoubtedly increase your proficiency. Cheers!

休み (やすみ) Yasumi - vacation