Yes/jes/ Definition 1 of 5Pro Tip 1/2Simple Confirmation Use 'yes' to confirm something directly and simply without providing extra information. Are you coming to the party? Yes. Pro Tip 2/2Polite Affirmation 'Yes' can be polite; add 'please' or 'thank you' to show good manners when accepting an offer. Would you like some more tea? Yes, please.