Wiktionary
cw
init. 1 conventional wisdom 2 (context mathematics English) clockwise 3 calendar week 4 (context technology English) continuous wave
Wikipedia
CW
CW may stand for:
Usage examples of "cw".
I sang Manawyddan and the Tyiwyth Teg, and Cwn Annwn, and the Tale of Arianrhod's Silver Wheel, and many, many others.