noun
first love
A straightforward loanword for one's first romantic love, used in everyday conversation and media.
彼女はファーストラブと結婚した。
She married her first love.
ファーストラブの思い出はいつまでも心に残る。
Memories of first love remain in your heart forever.
Variant spelling with an interpunct, sometimes used for clarity or stylistic effect.
初恋 is the native Japanese word for 'first love', more traditional and literary, while ファーストラブ is a modern, casual loanword often used in pop culture.
Borrowed from English 'first love'.