DR/CR what actually means of these words. Debit OR Credit ?

The actual meaning of Dr /Cr of these word is...

1.Debit is increase in the value of Assets and Expenses and decrease in income, libilties and equity.

2.Credit is  increase in libilities , equity and incomes and decrease in Asset and expenses.

@dasarathi thanks for the defination but my friend i mean the words it self what does mean of debit and credit.