I don't understand the meaning of OWE in the sentences I found in a dictionary:<br/><br/>1/ I can't go. I <b>owe it to him to stay.</b><br/><br/>2/you <b>owe it to yourself to get</b> some professional help<br/><br/>3/ She would have to send a letter . She <b>owe it to the family</b><br/><br/>4/You <b>owe it to your staff to be</b> honest with them<br/><br/>Please explain the structure " owe it to st/sb to verb "to me .<br/><br/>Thanks in advance