"Shared" indicates that the student share the room with another person. Some hotels only allow this option for two students traveling together.
"En-suite" indicates room with bathroom inside the room or for exclusive use of the student's room.
Note to regime:
"Self-service" or "Self-catering" indicates that the student has unlimited access to the kitchen to prepare their meals.
"Cama&desayuno" or "Bed&breakfast" indicates that provides breakfast (i.e. not provided or lunch or dinner).
"Media-pensión" or "Half-board" indicates that provides breakfast and dinner (ie not provided lunch).
"Pensión completa" or "Full-board" indicates that provides breakfast, lunch and dinner. Half-board or full, the student does not have access to the kitchen to prepare food, just to prepare drinks.