Economic

'Economic'

[economic.a.01] as in: of or relating to an economy, the system of production and management of material wealth

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Examples:
economic growth
aspects of social, political, and economical life

'Economic'

[economic.a.02] as in: of or relating to the science of economics

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Examples:
economic theory

'Economic'

[economic.s.01] as in: using the minimum of time or resources necessary for effectiveness

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Examples:
an economic use of home heating oil
a modern economical heating system
an economical use of her time

'Economic'

[economic.s.02] as in: concerned with worldly necessities of life (especially money)

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Examples:
he wrote the book primarily for economic reasons
gave up the large house for economic reasons
in economic terms they are very privileged

'Economic'

[economic.s.03] as in: financially rewarding

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Examples:
it was no longer economic to keep the factory open
have to keep prices high enough to make it economic to continue the service