lover

US /ˈlʌv.ɚ/
UK /ˈlʌv.ɚ/
"lover" picture
1.

a person who has a sexual or romantic relationship with someone, especially someone else's husband, wife, or partner

:
She discovered her husband had a lover.
They were secret lovers for years.
2.

a person who loves a specified thing or activity

:
He's a great animal lover.
She's a true art lover.