smiley

noun

An emoticon, especially a smiling facial glyph [ :‑) ] used to express delight or to indicate humor or irony.

adjective

Having a cheerful and happy disposition; smiling.

Cheerful and happy; smiling.

noun

A simplified representation of a smiling face.

A sequence of keyboard characters used to represent a person's mood or emotion, especially :) or :-) or other smiling depiction.