intransitive verb smiled, smiling smil′·ing

1. to have or take on a facial expression showing usually pleasure, amusement, affection, friendliness, etc., or, sometimes, irony, derision, etc. and characterized by an upward curving of the corners of the mouth and a sparkling of the eyes
2. to look (at, on, or upon someone) with a pleasant expression of this kind
3. to regard with favor or approval: with on or upon
4. to have a favorable, pleasing, or agreeable appearance

Etymology: ME smilen, akin to Norw smile, Swed smila, prob. via MLowG *smilen < IE base *(s)mei-, to smile, be astonished > L mirus, wonderful, OE smearcian, to smile

transitive verb

1. to express with a smile
2. to change or affect by smiling

noun

1. the act of smiling
2. the facial expression made in smiling
3. a favorable, pleasing, or agreeable appearance