How do you say the following words in Japanese?

Question:

Coffee, Study, Love, Improve, sofa.

Answer:

"Coffee" is "コーヒー," and "珈琲" is in kanji (usually in katakana).
"Study" is "勉強," and "to study" is "勉強する."
"Love" is "愛," and "to love" is "愛する."
"To improve" is "改善する."
"Sofa" is "ソファー."