noun

1. a small, flat loop, strap, or metal ring fastened to something for pulling it, hanging it up, etc.
2. a small, often ornamental, flap or piece fastened to the edge or surface as of a dress, coat, etc.
3. an attached or projecting piece as of a file folder, often with a label, used in filing
4. Aeron. an auxiliary airfoil set into the trailing edge of a larger control surface, such as an aileron

Etymology: < ?

transitive verb tabbed, tabbing tab′·bing

1. to provide with tabs
2. to choose or select