WWTW Views 5 meanings found WWTW may refer to the phrase "Words of Wisdom in a Time of War," wastewater treatment works, the World Wide Telecom Web, a support group for the wounded, or the colloquial expression "Whistling While They Work." Miscellaneous Walking With The Wounded Whistling While They Work Community Waste Water Treatment Works Governmental Words of Wisdom in a Time of War Computing World Wide Telecom Web