| accessory(noun, extra, supplement, appendage, adjunct) |
| accompaniment(addition, adjunct) |
| adjunct(noun, increase, extra, addition, supplement) |
| advancement(noun, advance, increase, gain, rise) |
| amplify(verb, increase, expand) |
| broadening(noun, expansion) |
| grow(verb, increase, expand) |
| maximize(verb, increase) |
| swell(noun, verb, advance, increase, raise) |
| upsurge(noun, advance, increase, raise, rise) |
| upswing(noun, advance, increase, progress, growth) |
| upturn(noun, advance, increase, raise, rise) |
| widening(noun, expansion) |
| accrue(verb, increase, add) |
| add(verb, increase, add) |
| annexation(noun, addition, joining, adding) |
| appendage(noun, increase, extra, addition, supplement) |
| boom |
| burgeoning(noun, raise, rise, growth, addition) |
| crescendo(noun, expansion) |