The term 'GRANT ENTRY TO' can be expressed in three different ways: ADMIT (5 letters), LETIN (5 letters), and SENDIN (6 letters). The term is used to describe the action of allowing someone to enter a place or situation. It is often used in the context of granting permission to enter a building, a country, or a particular event. It can also be used to refer to the act of giving someone access to a certain privilege or opportunity.