I was studying the book "Cabin Service Manual" that I face some new term such as :
"Boarding" , "bassinet", etc
as most of the times i started searching the net the first page was This Page about Boarding in wiki (the good Boy) in which this paragraph was more important:
Boarding is the entry of passengers onto a vehicle, usually in public transportation. Boarding starts with entering the vehicle and ends with the seating of each passenger and closure of the doors. The term is used in road, water and air transport (for example, passengers board a coach).
the I did got the chance of reading about Airstair
which is the set of steps by which the passengers get into the Aircraft. and in some types of aircrafts there is no need to ground services as the aircraft has its own stairs. like this:
the other term is "Bassinet" which is the facility in aircraft to hold the cute babies :
or
image source : wikipedia