Japanese phrase
結構です。 kek kō de su
Meaning
No thanks.
When to use it
Politely refuses something that has been offered. The phrase is common in casual service situations and everyday exchanges, with a gentle tone when said warmly.
Example dialogue
コーヒーはいかがですか？ kō hī wa i ka ga de su ka
Would you like some coffee?
あ、結構です。 a kek kō de su
No thanks.