What is another word for "enhance"?

Roget's Thesaurus (1911) lists these synonyms for "enhance": accession, accretion, add, additional, advance, aggrandize, aggrandizement, aggravate, aggravation, ahead, ascend, ascent, augment, augmentation, crescendo, deepen, development, dilatation, dilate, disperse, dispersion, enlarge, enlargement, exacerbate, exacerbation, exaggerate, exaggeration, exalt, exasperate, expand, expansion, extension, flame, flood, fuel, gain, get, grow, growth, heighten.