Cases of word usage

1) a deep, long channel dug in or between fields, at the sides of a road etc, used to hold or carry off water (ditch)

2) a pipe, channel etc used for carrying away water, sewage and other unwanted liquids (drain)

3) a narrow channel cut or formed by rainwater, e.g. on a hillside, or for carrying water away from a building (gully)

4) a long semi-circular pipe fixed under the edge of a roof to carry away rainwater; a long deep channel at the side of a road for rainwater (gutter)

5) an apparatus for regulating the level of water by controlling the flow into or out of a canal, lake etc; a channel for water (sluice)

6) healthy; in good condition; not hurt, damaged or decayed; reliable; based on truth, logic, facts; a narrow channel of water between two large area; something that is or can be heard (sound)