noun a tag. ·see tag, 2.
2. tab ·noun a loop for pulling or lifting something.
3. tab ·noun the flap or latchet of a shoe fastened with a string or a buckle.
4. tab ·noun a border of lace or other material, worn on the inner front edge of ladies' bonnets.
5. tab ·noun a loose pendent part of a lady's garment; ·esp., one of a series of pendent squares forming an edge or border.