A kiss is the touch or pressing of one’s lips against another person or an object. Cultural connotations of kissing vary widely.
Depending on the culture and context, a kiss can express sentiments of love, passion, romance, sexual attraction, sexual activity, sexual arousal, affection, respect, greeting, friendship, peace and good luck, among many others.
In some situations a kiss is a ritual, formal or symbolic gesture indicating devotion, respect, or sacrament. The word came from Old English cyssan (“to kiss”), in turn from coss (“a kiss”).