恋愛【れんあい】
love, love-making, passion, emotion, affections
愛情【あいじょう】
love, affection
愛称【あいしょう】
pet name, nickname, name used to indicate affection, intimacy, informality, etc.
愛する【あいする】
to love
愛しい【いとしい】
lovely, dear, beloved, darling, dearest, pitiable, pitiful
愛着【あいちゃく】
attachment (esp. to things), love, affection, fondness
愛犬【あいけん】
pet dog, beloved dog, love of dogs, fondness for dogs
愛読【あいどく】
reading with pleasure
愛用【あいよう】
favorite, favourite, habitually used
愛想【あいそ】
amiability, friendliness, affability, sociability, fondness (of someone), affection, liking, compliments, civilities, courtesies, flattery, hospitality, special treatment, entertainment, bill (at a restaurant), check
愛憎【あいぞう】
love and hate
親愛【しんあい】
deep affection, dear, beloved
博愛【はくあい】
charity, benevolence, philanthropy, (love for) humanity, fraternity, brotherhood, brotherly love, love of fellow man
可愛い【かわいい】
cute, adorable, charming, lovely, pretty, dear, precious, darling, pet, innocent, childlike, childish, lovable, dainty, little, tiny
慈愛【じあい】
affection (esp. parental), love, fondness