1. A channel at the edge of a street or road for carrying off surface water.
2. A trough fixed under or along the eaves of a building for draining rainwater from a roof.

Also called: "Regional eaves trough", "Regional rainspout", and "Regional spouting".

3. A furrow or groove formed by running water and to flow in channels or rivulets.
4. A trough or channel for carrying something off; such as, that on either side of a bowling alley.
5. In printing, the white space formed by the inner margins of two facing pages, as of a book.
6. A degraded and squalid class or state of human existence.

Befitting the lowest class of human life; vulgar, sordid, or unprincipled: gutter language; the gutter press.

7. To melt away through the side of the hollow formed by a burning wick; especially, with reference to a candle.
8. Etymology: from Middle English goter, gotere from Old French gutiere, goutiere (French gouttiere), "gutter, spout" (of water), "channel"; "groove", from gute, goute (French goutte), "drop" originally from Latin gutta, "drop".

Originally "a watercourse", later "furrow made by running water" (1586). Meaning "trough under the eaves of a roof to carry off rainwater" is from 1354. Figurative sense of "low, profane" is from 1818.