Бутылка or the transliteration will be butylka.
In Russian, "Любимая" is how to say/spell sweetheart.
В is at in Russian.
да in the Russian language, or "da" is how you spell it in English
'And' in Russian is spelled 'u'.
In Russian, "Caitlin" can be spelled as "Кейтлин."
"Как ты?" is how you spell "How are you?" in Russian.
Папа is dad in Russian.
Винтовка is rifle in Russian.
Tranquility in Russian is "спокойствие."
Henry in Russian is spelled as "Генри" (pronounced as Gen-ree).
Кэти is Kathy in Russian.
That is the correct spelling (capitalized) of the word Russian (Русско in Russian).