noun

1. 1. a joining of two pieces of material with a line of stitches
   2. the line of stitches sew a fine seam
   3. the material between the margin of each of the joined pieces and its outer edge a one-inch seam
   4. the line on the outside of a garment at the joining of two pieces of material
2. a line formed by the joining together of any separate pieces; line marking adjoining edges, as of boards
3. a mark, line, ridge, etc. like this, as a scar, wrinkle, mold line on glass, etc.
4. a thin layer or stratum of ore, coal, etc.

Etymology: ME seme < OE seam, akin to Ger saum < IE base *siw-, *sū > sew

transitive verb

1. to join together so as to form a seam
2. to mark with a seamlike line, crack, wrinkle, etc.

intransitive verb