1 hardworking and frugal

1 frugal

2 economical

1 plain and unadorned

2 thrifty and simple

1 to be industrious and frugal (idiom)

1 to work part time while studying

2 work-study program

1 wastage makes one destitute (idiom)

1 frugality in order to prevent destitution (idiom)

1 frugality makes honesty (idiom)

1 frugality prevents destitution (idiom)

1 to be industrious and frugal (idiom)