1) something added to, joining to, forming a part of, a larger thing (appendage)

2) (to cause an income, group etc) to become larger or better (augment)

3) a group separating from a larger one (breakaway)

4) a larger wave breaking against a rock etc. (breaker)

5) a group of people appointed (usually by a larger group) to carry out special duties (committee)

6) a small division of a larger room walled or curtained to make a separate compartment e.g. for (un)dressing in a swimming-pool (cubicle)

7) a small, fast warship used for protecting larger ships (destroyer)

8) (to cause something) to become larger (enlarge)

9) (to cause something) to become larger (expand)

10) a group of people in a larger group (e.g. a political party) with different views, often ones that suit their own interests (faction)