Are there any ways to increase your income

By increasing the chance of getting more work, I can increase my income.

The term income refers to the money which we earn through certain job or work. It may be either a monthly income or may be daily one. If we do the assigned job, the assigner will pay us wages or income. If a person does one single job, he earns only one income. If he does more than one job, he can increase his income.  

For example, I am working as a teacher in a school as is getting an income. In order to increase my income I take tuition class and do part time job in hospital. By this way I have increased my source of income.