にっこり笑う

にっこりわらう

to smile cheerfully, to crack a smile

笑うに笑えない

わらうにわらえない

being unable to laugh (at a funny but serious situation); forced to hold back laughter

にんまり

complacent smile

嘲り笑う

あざけりわらう

to laugh to scorn

笑う

わらう

to laugh

笑い死に

わらいじに

death by laughter

朗らかに笑う

ほがらかにわらう

to smile brightly, to laugh merrily

にこっと笑う

にこっとわらう

to smile pleasantly

山笑う

やまわらう

mountain in springtime when all of the tree buds open at the same time (usu. in haiku), laughing mountain

ケラケラ笑う

ケラケラわらう

to cackle

ゲラゲラ笑う

to guffaw; to roar with laughter; to laugh heartily

一笑に付す

いっしょうにふす

to laugh (someone) down

笑

LOL; haha

最後に笑う者が最もよく笑う

さいごにわらうものがもっともよくわらう

He who laughs last laughs hardest

作り笑い

つくりわらい

forced laugh, forced smile

作り笑顔

つくりえがお

fake smile; false smile

独り笑い

ひとりわらい

laughing by oneself

笑う門には福来る

わらうかどにはふくきたる

laugh and grow fat, good fortune and happiness will come to the home of those who smile

一笑に付する

いっしょうにふする

to laugh something off, to shrug a matter off