楽 (Kanji for enjoy)

Onyomi

RAKU, GAKU

RAKU - He was a dork but then he started to enjoy playing ROCK music and he GOT COOL.

Enjoy the big white sparkles when we shoot fireworks at that tree.

たの*しみ	I'm looking forward to it! ★★★★★
たの＊しむ	to enjoy ★★★★★
たの＊しい	that is rad! ★★★★★
( が ) らく	means this is easy and fun. As in, 'My work is easy and fun!' Other example : Ｑ；'You want to pay by debit or credit?' A；"Whichever is easier for you!" (どれのほうが楽?") LAZY ★★★☆☆

音楽(おんがく)

music! ★★★★★
音 (sound) + 楽 (enjoy) = 音楽 (music!)

楽観的(らっかんてき) な

optimistic ★★☆☆☆
楽 (enjoy) + 観 (point of view) + 的 (motivation / '-al') = 楽観的 (optimistic)

娯楽(ごらく)

entertainment ★☆☆☆☆
娯 (entertainment) + 楽 (enjoy) = 娯楽 (entertainment)

entertainment like movies, comic books, Disneyland. . .

	Meaning	Hint	Radical
薬	medicine	FLOWER	花
楽	enjoy	NO FLOWER

Opium medicine is made from FLOWERS.

If you're enjoying life, you don't need medical flowers, so NO FLOWER.