a frugal farmer.
a frugal lunch.
a modern economical heating system.
a sparing father and a spending son.
an economic use of home heating oil.
an economical meal.
an economical shopper.
an economical use of her time.
aspects of social, political, and economical life.
economic growth.
sparing in their use of heat and light.
stinting in bestowing gifts.
thrifty because they remember the great Depression.
`scotch' is used only informally.