expansion
noun
[ ɪkˈspanʃ(ə)n ]
• the action of becoming larger or more extensive.
• "the rapid expansion of suburban London"
Similar:
growth,
increase in size,
enlargement,
extension,
augmentation,
development,
evolution,
diversification,
build-up,
buildout,
scaling up,
aggrandizement,
spread,
proliferation,
mushrooming,
multiplication,
evolvement,
Opposite:
reduction in size,
Origin:
early 17th century: from late Latin expansio(n- ), from Latin expandere (see expand).