ANY - To even the slightest extent, at all.
APP - An application (program), especially a small one designed for a mobile device.
HAY - Grass cut and dried for use as animal fodder.
NAP - A short period of sleep, especially one during the day.
PAN - A wide, flat receptacle used around the house, especially for cooking.
PAY - To give money or other compensation to in exchange for goods or services.
PUP - A young dog, wolf, fox, seal, shark and some other animals.
YUP - A yes; an affirmative answer.
PAP - Food in the form of a soft paste, often a porridge, especially as given to very young children.
NAY - No.
PUN - To beat; strike with force; ram; pound, as in a mortar; reduce to powder.
HAPPY - Experiencing the effect of favourable fortune; having the feeling arising from the consciousness of well-being or of enjoyment; enjoying good of any kind, as peace, tranquillity, comfort; contented; joyous.
NAPPY - An absorbent garment worn by a baby who does not yet have voluntary control of his or her bladder and bowels or by someone who is incontinent.
UNHAPPY - Not happy; sad.