water main 
noun
The main pipe in a water supply system.A nearby street, Wellgate, takes its name from a Late Medieval wellhead structure which still survives on the site, and from which people in the town drew water until a water main was installed in 1903....
- Early morning on September 18, the combination of heavy rains and, according to Pattaya City sources, a broken water main quickly flooded many areas of North Pattaya.
- However, Baghdad residents received a boost yesterday when water was restored to nearly half of the beleaguered capital after a week-long crisis caused by sabotage of a water main.
- relaxation
- relaxation oscillator
- relaxation tape
- relaxation technique
- relaxation therapy
- relaxation time
- relaxative
- relaxatory
- relaxed
- relaxedly
- relaxedness
- relaxer
- relaxin
- relaxion
- relay
- universalist
- universalistic
- universalistic hedonism
- universality
- universalizability
- universalizable
- universalization
- universalize
- universal joint
- universally