Cases of word usage

1) to add ornament or decorations to a person, room etc (using Jewels etc) (adorn)

2) to add notes to (a book etc) explaining difficulties etc (annotate)

3) to add something in writing; to add something at the end (append)

4) (of a committee) to add a person as a member by the votes of those who are already members (coopt)

5) to add another signature to (a document) to give it authority (countersign)

6) to add details to (something) to make it more attractive, exciting etc (embellish)

7) to add to (the value, attraction, reputation etc) (enhance)

8) a (usually triangular or diamond-shaped) piece of cloth inserted in clothing to add strength or size (gusset)

9) (to cause the style, colour etc of something) to be pleasant to see with something else; to add notes (to a melody) to make harmonies (harmonize)

10) to add pictures, diagrams, photographs etc to (something); to explain (something) by using examples etc (illustrate)