(1)替代父母的地位；担当起父母的权利与责任
代行父母义务者，即loco parentis，指某人在另一人的生父母不在并且没有正式法律认可的情况下，对其进行的照顾和管理。它是临时性的，有别于长期性的收养。

(2)(大学等)托管机构的管理或监督

• fair knowledge or skill
• Fair Labor Standards Act
• fairly
• fairly and legally
• fair market price
• fair market value
• fairness doctrine
• fair on its face
• fair persuasion
• fair pleader
• fair pleading
• fair preponderance of evidence
• fair rate of return
• fair representation
• fair return
• fair return on investment
• fair sale
• Fair Sales Act
• Fair Trade Acts
• fair trade laws
• fair trading
• fair trial
• fair use doctrine
• fair valuation
• fair value